diff --git a/src/main/protocol/HConnection.java b/src/main/protocol/HConnection.java
index d690303..58c2c1e 100644
--- a/src/main/protocol/HConnection.java
+++ b/src/main/protocol/HConnection.java
@@ -13,7 +13,9 @@ import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 public class HConnection {
 
@@ -25,6 +27,20 @@ public class HConnection {
         CONNECTED           // CONNECTED
     }
 
+    private static Set<String> autoDetectHosts;
+    static {
+        autoDetectHosts = new HashSet<>();
+        autoDetectHosts.add("game-us.habbo.com:38101");
+        autoDetectHosts.add("game-nl.habbo.com:30000");
+        autoDetectHosts.add("game-br.habbo.com:30000");
+        autoDetectHosts.add("game-es.habbo.com:30000");
+        autoDetectHosts.add("game-fr.habbo.com:30000");
+        autoDetectHosts.add("game-nl.habbo.com:30000");
+        autoDetectHosts.add("game-tr.habbo.com:30000");
+    }
+
+
+    public final static boolean DEBUG = false;
     private static final HostReplacer hostsReplacer = HostReplacerFactory.get();
 
     private volatile boolean hostRedirected = false;
@@ -40,7 +56,6 @@ public class HConnection {
     private volatile Handler inHandler = null;
     private volatile Handler outHandler = null;
 
-    public final static boolean DEBUG = false;
 
     public State getState() {
         return state;
@@ -277,7 +292,7 @@ public class HConnection {
      * 1 = modification
      * 2 = after modification   ¹
      *
-     * ¹don't modificate (block, replace)
+     * ¹don't edit the packet (block, replace)
      */
     public void addTrafficListener(int order, TrafficListener listener) {
         ((List<TrafficListener>)trafficListeners[order]).add(listener);
diff --git a/src/main/protocol/HPacket.java b/src/main/protocol/HPacket.java
index ade4ca2..3cb5bd3 100644
--- a/src/main/protocol/HPacket.java
+++ b/src/main/protocol/HPacket.java
@@ -46,7 +46,6 @@ public class HPacket {
         return teststring;
     }
 
-
     /**
      * returns "" if invalid expression, replaces all {} occurences except {l}
      * @return
@@ -490,11 +489,302 @@ public class HPacket {
         isEdited = remember;
     }
 
+
+    /**
+     * returns "" if not found or not sure enough
+     * dont hate on the coding quality in this function, its pretty effective.
+     */
+    public String toExpression() {
+        if (isCorrupted()) return "";
+
+        boolean[] mask = new boolean[packetInBytes.length];
+        String[] resultTest = new String[packetInBytes.length];
+
+        for (int i = 0; i < 6; i++) {
+            mask[i] = true;
+        }
+
+        resultTest[0] = "{l}";
+        resultTest[4] = "{u:"+headerId()+"}";
+
+        outerloop:
+        for (int i = 6; i < packetInBytes.length - 1; i++) {
+            int potentialstringlength = readUshort(i);
+            if ((potentialstringlength >= 0 && potentialstringlength < 3) || potentialstringlength > packetInBytes.length - i - 2) continue;
+
+            for (int j = i; j < potentialstringlength+i+2; j++) {
+                if (mask[j]) continue outerloop;
+            }
+
+            for (int j = i+2; j < potentialstringlength+i+2; j++) {
+                if (readByte(j) >= 0 && readByte(j) < 6) continue  outerloop;
+            }
+
+            if (i + 2 + potentialstringlength >= packetInBytes.length - 3 ||
+                    (packetInBytes[i+2+potentialstringlength] >= 0 &&
+                            packetInBytes[i+2+potentialstringlength] < 6 )) {
+
+                for (int j = i; j < potentialstringlength+i+2; j++) {
+                    mask[j] = true;
+                }
+                resultTest[i] = "{s:"+readString(i)+"}";
+                i += (1 + potentialstringlength);
+            }
+        }
+
+        //TODO add special case for seperated 5, 6 and 7 bytes here
+        // long live the shitty code.
+
+        //5
+        out:
+        for (int i = 6; i < packetInBytes.length - 4; i++) {
+            for (int j = i; j < i+5; j++) {
+                if (mask[j]) {
+                    i = j;
+                    continue out;
+                }
+            }
+            if (i+5 < packetInBytes.length && !mask[i+5]) continue;
+
+            if ((readByte(i) == 0 || readByte(i) == 1) && (readInteger(i+1) > 1 || readInteger(i+1) < 0)) {
+                //decide the first byte to be the a boolean
+                resultTest[i] = "{b:"+(readBoolean(i) ? "true" : "false")+"}";
+                resultTest[i+1] = "{i:"+readInteger(i+1)+"}";
+                for (int j = i; j < i+5; j++) {
+                    mask[j] = true;
+                }
+            }
+
+        }
+
+//        //6
+//        out:
+//        for (int i = 6; i < packetInBytes.length - 5; i++) {
+//            for (int j = i; j < i+6; j++) {
+//                if (mask[j]) {
+//                    i = j;
+//                    continue out;
+//                }
+//            }
+//            if (i+6 < packetInBytes.length && !mask[i+6]) continue;
+//
+//
+//
+//        }
+//
+//        //7
+//        out:
+//        for (int i = 6; i < packetInBytes.length - 6; i++) {
+//            for (int j = i; j < i+7; j++) {
+//                if (mask[j]) {
+//                    i = j;
+//                    continue out;
+//                }
+//            }
+//            if (i+7 < packetInBytes.length && !mask[i+7]) continue;
+//
+//
+//
+//        }
+
+        lp22:
+        for (int i = 6; i < packetInBytes.length - 3; i++) {
+            for (int j = i; j < i + 4; j++) {
+                if (mask[j]) {
+                    continue lp22;
+                }
+            }
+
+            int num = readInteger(i);
+            if (num == -1 || (num >= 0 && num < 256)) {
+                for (int j = i; j < i+4; j++) {
+                    mask[j] = true;
+                }
+                resultTest[i] = "{i:"+num+"}";
+                i += 3;
+            }
+        }
+
+
+        boolean changed = true;
+        boolean isfirst = true;
+
+        while (changed) {
+            changed = false;
+            // filtering strings
+            outerloop:
+            for (int i = 6; i < packetInBytes.length - 1; i++) {
+                int potentialstringlength = readUshort(i);
+                if ((potentialstringlength >= 0 && potentialstringlength < 3) || potentialstringlength > packetInBytes.length - i - 2) continue;
+
+                for (int j = i; j < potentialstringlength+i+2; j++) {
+                    if (mask[j]) continue outerloop;
+                }
+
+                for (int j = i+2; j < potentialstringlength+i+2; j++) {
+                    if (readByte(j) >= 0 && readByte(j) < 6) continue  outerloop;
+                }
+
+                if (i + 2 + potentialstringlength >= packetInBytes.length - 3 ||
+                        (packetInBytes[i+2+potentialstringlength] >= 0 &&
+                                packetInBytes[i+2+potentialstringlength] < 6 )) {
+
+                    for (int j = i; j < potentialstringlength+i+2; j++) {
+                        mask[j] = true;
+                    }
+                    changed = true;
+                    resultTest[i] = "{s:"+readString(i)+"}";
+                    i += (1 + potentialstringlength);
+                }
+            }
+
+            if (isfirst) {
+                int count = 0;
+                for (int i = 6; i < packetInBytes.length; i++) {
+                    if (!mask[i]) count++;
+                }
+                if (count > 300) return "";
+            }
+            isfirst = false;
+
+            // filtering integers
+            boolean hasfoundsomtin = true;
+            while (hasfoundsomtin) {
+                hasfoundsomtin = false;
+                outerloop2:
+                for (int i = 6; i < packetInBytes.length - 3; i++) {
+                    for (int j = i; j < i + 4; j++) {
+                        if (mask[j]) {
+                            continue outerloop2;
+                        }
+                    }
+
+                    if (i + 4 == packetInBytes.length || mask[i+4] || mask[i-1]) {
+                        if (packetInBytes[i+1] == 2) { //could be an unfiltered string; don't filter yet
+                            if (((packetInBytes[i+2] >= '0' && packetInBytes[i+2] <= '9') ||
+                                    (packetInBytes[i+2] >= 'a' && packetInBytes[i+2] <= 'z') ||
+                                    (packetInBytes[i+2] >= 'A' && packetInBytes[i+2] <= 'Z')) &&
+                                    ((packetInBytes[i+3] >= '0' && packetInBytes[i+3] <= '9') ||
+                                            (packetInBytes[i+3] >= 'a' && packetInBytes[i+3] <= 'z') ||
+                                            (packetInBytes[i+3] >= 'A' && packetInBytes[i+3] <= 'Z'))) {
+                                changed = true;
+                                for (int j = i; j < i + 4; j++) {
+                                    mask[j] = true;
+                                }
+                                hasfoundsomtin = true;
+                                resultTest[i] = "{i:"+readInteger(i)+"}";
+                                continue;
+                            }
+                            continue ;
+                        }
+                        else {
+                            for (int j = i; j < i + 4; j++) {
+                                mask[j] = true;
+                            }
+                            hasfoundsomtin = true;
+                            changed = true;
+                            resultTest[i] = "{i:"+readInteger(i)+"}";
+                            continue;
+                        }
+                    }
+                    if (readInteger(i) < 65536) {
+                        for (int j = i; j < i + 4; j++) {
+                            mask[j] = true;
+                        }
+                        hasfoundsomtin = true;
+                        resultTest[i] = "{i:"+readInteger(i)+"}";
+                        changed = true;
+                        continue;
+                    }
+
+                }
+            }
+
+
+            // filtering strings
+
+            outerloop3:
+            for (int i = 6; i < packetInBytes.length - 1; i++) {
+                int potentialstringlength = readUshort(i);
+                if (potentialstringlength > packetInBytes.length - i - 2) continue;
+
+                for (int j = i; j < potentialstringlength+i+2; j++) {
+                    if (mask[j]) continue outerloop3;
+                }
+
+                for (int j = i+2; j < potentialstringlength+i+2; j++) {
+                    if (readByte(j) >= 0 && readByte(j) < 6) continue outerloop3;
+                }
+
+                for (int j = i; j < potentialstringlength+i+2; j++) {
+                    mask[j] = true;
+                }
+                resultTest[i] = "{s:"+readString(i)+"}";
+                i += (1 + potentialstringlength);
+                changed = true;
+            }
+        }
+
+        int opeenvolging = 0;
+        for (int i = 6; i < packetInBytes.length; i++) {
+            if (!mask[i]) {
+                opeenvolging++;
+                if (opeenvolging == 4) return "";
+                if (i+1 == packetInBytes.length || mask[i+1]) {
+                    for (int j = i - opeenvolging + 1; j <= i; j++) {
+                        mask[j] = true;
+                        if (packetInBytes[j] == 1 || packetInBytes[j] == 0) {
+                            resultTest[j] = "{b:"+(packetInBytes[j] == 1 ? "true" : "false")+"}";
+                        }
+                        else {
+                            resultTest[j] = "{b:"+packetInBytes[j]+"}";
+                        }
+                    }
+                    opeenvolging = 0;
+
+
+                }
+            }
+        }
+
+
+        // if all values in mask are true, go further
+        for (boolean bool : mask) {
+            if (!bool) return "";
+        }
+
+        StringBuilder expression = new StringBuilder();
+        for (int i = 0; i < resultTest.length; i++) {
+            if (resultTest[i] != null) expression.append(resultTest[i]);
+        }
+
+        return expression.toString();
+    }
+
     public static void main(String[] args) {
-        HPacket packet = new HPacket("[0][0][0]4[15] [0]!PRODUCTION-201802201205-141713395[0][5]FLASH[0][0][0][1][0][0][0][0]");
-        packet.replaceFirstString("FLASH", "HTML");
-        System.out.println(packet);
+//        HPacket packet = new HPacket("[0][0][0]4[15] [0]!PRODUCTION-201802201205-141713395[0][5]FLASH[0][0][0][1][0][0][0][0]");
+//        packet.replaceFirstString("FLASH", "HTML");
+//        System.out.println(packet);
+
+        HPacket packet = new HPacket("[0][0][0]![14][134][0][21]99% kans je leest dit[0][0][0][0][0][0][0][29]");
+        System.out.println(packet.toExpression());
+
+        packet = new HPacket("[0][0][0]+[0]µ[0][10]Navigation[0][0][0][11]go.official[0][8]27636336[0][0][0][0]");
+        System.out.println(packet.toExpression());
+
+        packet = new HPacket("[0][0][0][11][7]/[0][0][0][2][0][0][0][0][0]");
+        System.out.println(packet.toExpression());
+
+        packet = new HPacket("[0][0][4]ÿ[5]×[0][0][0]<[0][7]new_ads[0][14]friend_finding[0][10]staffpicks[0][15]campaign_target[0][13]friends_rooms[0][6]groups[0][8]metadata[0][12]history_freq[0][13]highest_score[0][11]competition[0][21]category__Habbo Leven[0] category__Global Chat & Discussi[0] category__GLOBAL BUILDING AND DE[0][25]category__global official[0][22]category__global party[0][22]category__global games[0][22]category__global trade[0][24]category__global fansite[0][21]category__global help[0][31]category__global personal space[0][24]category__global reviews[0][19]category__global bc[0][31]category__global personal space[0] eventcategory__Vetste Evenemente[0][31]eventcategory__Feesten & Muziek[0][25]eventcategory__Rollenspel[0][24]eventcategory__Help Desk[0][21]eventcategory__Ruilen[0][20]eventcategory__Games[0][22]eventcategory__Bouwers[0] eventcategory__Debatten & Discus[0][24]eventcategory__Friending[0][25]eventcategory__Habbo Werk[0][24]eventcategory__Evenement[0] eventcategory__Groepsevenementen[0][9]favorites[0][16]eventcategory__2[0][15]official_134070[0][15]official_134072[0][15]official_134073[0][15]official_134074[0][15]official_134910[0][15]official_134912[0][15]official_134913[0][15]official_135420[0][15]official_135422[0][15]official_135423[0][15]official_135424[0][16]eventcategory__5[0][15]official_144124[0][15]official_144126[0][15]official_144127[0][16]category__Ruilen[0] category__Global Chat & Discussi[0] category__GLOBAL BUILDING AND DE[0][15]official_148980[0][15]official_148981[0][15]official_148982[0][15]official_148984[0][15]official_148985");
+        System.out.println(packet.toExpression());
+
+        packet = new HPacket("[0][0][0][18][2][144][0][12]myworld_view[0][0]");
+        System.out.println(packet.toExpression());
+
+        packet = new HPacket("[0][0][0]ã[4]Ù[0][0][0][12][0][0][0][1][0][18]Vetste Evenementen[0][0][0][0][2][0][16]Feesten & Muziek[1][0][0][0][3][0][10]Rollenspel[1][0][0][0][4][0][9]Help Desk[1][0][0][0][5][0][6]Ruilen[1][0][0][0][6][0][5]Games[1][0][0][0][7][0][7]Bouwers[1][0][0][0][8][0][21]Debatten & Discussies[1][0][0][0][9][0][9]Friending[1][0][0][0][10][0][10]Habbo Werk[1][0][0][0][11][0][9]Evenement[1][0][0][0][12][0][17]Groepsevenementen[0]");
+        System.out.println(packet.toExpression());
 
     }
 
+
 }
\ No newline at end of file
diff --git a/src/main/protocol/hostreplacer/HostReplacerFactory.java b/src/main/protocol/hostreplacer/HostReplacerFactory.java
index d5f8b5d..d860254 100644
--- a/src/main/protocol/hostreplacer/HostReplacerFactory.java
+++ b/src/main/protocol/hostreplacer/HostReplacerFactory.java
@@ -9,11 +9,10 @@ public class HostReplacerFactory {
 
     public static HostReplacer get() {
 
-        if (OSValidator.isUnix()) return new LinuxHostReplacer();
+        if (OSValidator.isUnix() || OSValidator.isMac()) return new UnixHostReplacer();
         if (OSValidator.isWindows()) return new WindowsHostReplacer();
-        if (OSValidator.isMac()) return new MacOSHostReplacer();
 
-        return new LinuxHostReplacer();
+        return new UnixHostReplacer();
     }
 
 }
diff --git a/src/main/protocol/hostreplacer/MacOSHostReplacer.java b/src/main/protocol/hostreplacer/MacOSHostReplacer.java
deleted file mode 100644
index c2fd54e..0000000
--- a/src/main/protocol/hostreplacer/MacOSHostReplacer.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package main.protocol.hostreplacer;
-
-/**
- * Created by Jonas on 04/04/18.
- */
-class MacOSHostReplacer implements HostReplacer {
-    @Override
-    public void addRedirect(String original, String redirect) {
-
-    }
-
-    @Override
-    public void removeRedirect(String original, String redirect) {
-
-    }
-}
diff --git a/src/main/protocol/hostreplacer/LinuxHostReplacer.java b/src/main/protocol/hostreplacer/UnixHostReplacer.java
similarity index 96%
rename from src/main/protocol/hostreplacer/LinuxHostReplacer.java
rename to src/main/protocol/hostreplacer/UnixHostReplacer.java
index affd9f4..6436e92 100644
--- a/src/main/protocol/hostreplacer/LinuxHostReplacer.java
+++ b/src/main/protocol/hostreplacer/UnixHostReplacer.java
@@ -6,11 +6,11 @@ import java.util.ArrayList;
 /**
  * Created by Jeunez on 04/04/18.
  */
-class LinuxHostReplacer implements HostReplacer {
+class UnixHostReplacer implements HostReplacer {
 
     protected String hostsFileLocation;
 
-    LinuxHostReplacer() {
+    UnixHostReplacer() {
         hostsFileLocation = "/etc/hosts";
     }
 
diff --git a/src/main/protocol/hostreplacer/WindowsHostReplacer.java b/src/main/protocol/hostreplacer/WindowsHostReplacer.java
index 78726d3..c02d36c 100644
--- a/src/main/protocol/hostreplacer/WindowsHostReplacer.java
+++ b/src/main/protocol/hostreplacer/WindowsHostReplacer.java
@@ -3,7 +3,7 @@ package main.protocol.hostreplacer;
 /**
  * Created by Jonas on 04/04/18.
  */
-class WindowsHostReplacer extends LinuxHostReplacer {
+class WindowsHostReplacer extends UnixHostReplacer {
 
     WindowsHostReplacer() {
         super();
diff --git a/src/main/ui/connection/Connection.fxml b/src/main/ui/connection/Connection.fxml
index ccfbc3c..319360e 100644
--- a/src/main/ui/connection/Connection.fxml
+++ b/src/main/ui/connection/Connection.fxml
@@ -2,6 +2,7 @@
 
 <?import javafx.geometry.Insets?>
 <?import javafx.scene.control.Button?>
+<?import javafx.scene.control.CheckBox?>
 <?import javafx.scene.control.ComboBox?>
 <?import javafx.scene.control.Label?>
 <?import javafx.scene.control.TextField?>
@@ -15,14 +16,14 @@
         <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
     </columnConstraints>
     <rowConstraints>
-        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
-        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+        <RowConstraints maxHeight="172.0" minHeight="10.0" prefHeight="140.0" vgrow="SOMETIMES" />
+        <RowConstraints maxHeight="127.0" minHeight="10.0" prefHeight="122.0" vgrow="SOMETIMES" />
     </rowConstraints>
     <children>
         <GridPane alignment="CENTER" GridPane.hgrow="SOMETIMES" GridPane.vgrow="SOMETIMES">
             <columnConstraints>
-                <ColumnConstraints hgrow="SOMETIMES" maxWidth="364.0" minWidth="10.0" prefWidth="325.0" />
-                <ColumnConstraints hgrow="SOMETIMES" maxWidth="279.0" minWidth="10.0" prefWidth="252.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="483.0" minWidth="10.0" prefWidth="317.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="350.0" minWidth="10.0" prefWidth="248.0" />
             </columnConstraints>
             <rowConstraints>
                 <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
@@ -34,8 +35,9 @@
                     </columnConstraints>
                     <rowConstraints>
                         <RowConstraints maxHeight="32.0" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
-                        <RowConstraints maxHeight="32.0" minHeight="10.0" prefHeight="29.0" vgrow="SOMETIMES" />
-                        <RowConstraints maxHeight="45.0" minHeight="10.0" prefHeight="43.0" vgrow="SOMETIMES" />
+                        <RowConstraints maxHeight="40.0" minHeight="10.0" prefHeight="37.0" vgrow="SOMETIMES" />
+                        <RowConstraints maxHeight="45.0" minHeight="10.0" prefHeight="32.0" vgrow="SOMETIMES" />
+                  <RowConstraints maxHeight="45.0" minHeight="10.0" prefHeight="21.0" vgrow="SOMETIMES" />
                     </rowConstraints>
                     <children>
                         <GridPane>
@@ -48,7 +50,7 @@
                             </rowConstraints>
                             <children>
                                 <Label text="Port:" GridPane.halignment="CENTER" GridPane.valignment="CENTER" />
-                        <ComboBox fx:id="inpPort" editable="true" GridPane.columnIndex="1">
+                        <ComboBox fx:id="inpPort" disable="true" editable="true" prefWidth="183.0" GridPane.columnIndex="1">
                            <GridPane.margin>
                               <Insets right="15.0" />
                            </GridPane.margin>
@@ -65,72 +67,65 @@
                             </rowConstraints>
                             <children>
                                 <Label text="Host:" GridPane.halignment="CENTER" GridPane.valignment="CENTER" />
-                                <ComboBox fx:id="inpHost" editable="true" GridPane.columnIndex="1">
+                                <ComboBox fx:id="inpHost" disable="true" editable="true" GridPane.columnIndex="1">
                                     <GridPane.margin>
                                         <Insets right="15.0" />
                                     </GridPane.margin>
                                 </ComboBox>
                             </children>
                         </GridPane>
-                        <Button fx:id="btnConnect" alignment="CENTER" maxWidth="1.7976931348623157E308" onAction="#btnConnect_clicked" text="Connect" GridPane.halignment="CENTER" GridPane.rowIndex="2" GridPane.valignment="CENTER">
-                            <GridPane.margin>
-                                <Insets left="15.0" right="15.0" />
-                            </GridPane.margin></Button>
+                  <GridPane GridPane.rowIndex="2">
+                    <columnConstraints>
+                      <ColumnConstraints hgrow="SOMETIMES" maxWidth="185.0" minWidth="10.0" prefWidth="158.0" />
+                      <ColumnConstraints hgrow="SOMETIMES" maxWidth="117.0" minWidth="10.0" prefWidth="90.0" />
+                    </columnConstraints>
+                    <rowConstraints>
+                      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                        <RowConstraints />
+                        <RowConstraints />
+                        <RowConstraints />
+                    </rowConstraints>
+                     <children>
+                        <CheckBox fx:id="cbx_autodetect" mnemonicParsing="false" selected="true" text="Auto-detect" textFill="#000000a9" GridPane.columnIndex="1" GridPane.rowIndex="3">
+                           <GridPane.margin>
+                              <Insets left="-5.0" />
+                           </GridPane.margin>
+                           <font>
+                              <Font size="12.0" />
+                           </font>
+                        </CheckBox>
+                              <Button fx:id="btnConnect" alignment="CENTER" maxWidth="1.7976931348623157E308" onAction="#btnConnect_clicked" text="Connect" GridPane.halignment="CENTER" GridPane.rowIndex="3" GridPane.valignment="CENTER">
+                                  <GridPane.margin>
+                                      <Insets left="15.0" right="15.0" />
+                                  </GridPane.margin>
+                        </Button>
+                     </children>
+                  </GridPane>
                     </children>
                     <opaqueInsets>
                         <Insets />
                     </opaqueInsets>
                     <GridPane.margin>
-                        <Insets bottom="6.0" top="22.0" />
+                        <Insets top="20.0" />
                     </GridPane.margin>
                 </GridPane>
-                <GridPane style="-fx-border-color: #888888; -fx-border-radius: 5px;">
-                    <columnConstraints>
-                        <ColumnConstraints hgrow="SOMETIMES" maxWidth="140.0" minWidth="10.0" prefWidth="103.0" />
-                        <ColumnConstraints hgrow="SOMETIMES" maxWidth="191.0" minWidth="10.0" prefWidth="190.0" />
-                    </columnConstraints>
-                    <rowConstraints>
-                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
-                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
-                    </rowConstraints>
-                    <GridPane.margin>
-                        <Insets bottom="12.0" left="20.0" right="10.0" top="18.0" />
-                    </GridPane.margin>
-                    <children>
-                        <Label text="Public key:" textFill="#000000cc">
-                            <GridPane.margin>
-                                <Insets left="10.0" />
-                            </GridPane.margin>
-                        </Label>
-                        <Label text="Private key:" textFill="#000000cc" GridPane.rowIndex="1">
-                            <GridPane.margin>
-                                <Insets left="10.0" />
-                            </GridPane.margin>
-                        </Label>
-                        <TextField editable="false" GridPane.columnIndex="1">
-                            <opaqueInsets>
-                                <Insets />
-                            </opaqueInsets>
-                            <GridPane.margin>
-                                <Insets left="5.0" right="10.0" />
-                            </GridPane.margin>
-                        </TextField>
-                        <TextField editable="false" GridPane.columnIndex="1" GridPane.rowIndex="1">
-                            <GridPane.margin>
-                                <Insets left="5.0" right="10.0" />
-                            </GridPane.margin>
-                        </TextField>
-                    </children>
-                    <padding>
-                        <Insets bottom="7.0" top="7.0" />
-                    </padding>
-                </GridPane>
+            <GridPane style="-fx-border-color: #888888; -fx-border-radius: 5px;">
+              <columnConstraints>
+                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+              </columnConstraints>
+              <rowConstraints>
+                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+              </rowConstraints>
+               <GridPane.margin>
+                  <Insets bottom="14.0" left="20.0" right="15.0" top="17.0" />
+               </GridPane.margin>
+            </GridPane>
             </children>
         </GridPane>
         <GridPane alignment="CENTER" GridPane.rowIndex="1">
             <columnConstraints>
-                <ColumnConstraints hgrow="SOMETIMES" maxWidth="283.0" minWidth="10.0" prefWidth="197.0" />
-                <ColumnConstraints hgrow="SOMETIMES" maxWidth="380.0" minWidth="10.0" prefWidth="380.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="340.0" minWidth="10.0" prefWidth="208.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="380.0" minWidth="10.0" prefWidth="357.0" />
             </columnConstraints>
             <rowConstraints>
                 <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
@@ -153,10 +148,13 @@
                                 <Font size="12.0" />
                             </font>
                         </Label>
-                        <Label fx:id="lblState" alignment="CENTER" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" style="-fx-border-color: #888888; -fx-border-radius: 5px;" text="Not connected" textAlignment="CENTER" textFill="#000000d1" GridPane.halignment="CENTER" GridPane.hgrow="ALWAYS" GridPane.rowIndex="1" GridPane.valignment="CENTER" GridPane.vgrow="ALWAYS" />
+                        <Label fx:id="lblState" alignment="CENTER" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" style="-fx-border-color: #888888; -fx-border-radius: 5px;" text="Not connected" textAlignment="CENTER" textFill="#000000d1" GridPane.halignment="CENTER" GridPane.hgrow="ALWAYS" GridPane.rowIndex="1" GridPane.valignment="CENTER" GridPane.vgrow="ALWAYS">
+                     <GridPane.margin>
+                        <Insets />
+                     </GridPane.margin></Label>
                     </children>
                     <GridPane.margin>
-                        <Insets bottom="14.0" left="20.0" />
+                        <Insets bottom="14.0" left="20.0" right="20.0" />
                     </GridPane.margin>
                 </GridPane>
                 <GridPane style="-fx-border-color: #888888; -fx-border-radius: 5px; " GridPane.columnIndex="1">
@@ -169,7 +167,7 @@
                         <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                     </rowConstraints>
                     <GridPane.margin>
-                        <Insets bottom="12.0" left="20.0" right="10.0" top="18.0" />
+                        <Insets bottom="12.0" left="20.0" right="10.0" top="12.0" />
                     </GridPane.margin>
                     <children>
                         <Label text="Game host:" textFill="#000000cc">
diff --git a/src/main/ui/connection/Connection.java b/src/main/ui/connection/Connection.java
index 8199f86..c7e8f54 100644
--- a/src/main/ui/connection/Connection.java
+++ b/src/main/ui/connection/Connection.java
@@ -7,10 +7,7 @@ import javafx.event.ActionEvent;
 import javafx.event.Event;
 import javafx.event.EventHandler;
 import javafx.event.EventType;
-import javafx.scene.control.Button;
-import javafx.scene.control.ComboBox;
-import javafx.scene.control.Label;
-import javafx.scene.control.TextField;
+import javafx.scene.control.*;
 import main.protocol.HConnection;
 import main.ui.SubForm;
 
@@ -24,6 +21,7 @@ public class Connection extends SubForm {
     public Label lblState;
     public TextField outHost;
     public TextField outPort;
+    public CheckBox cbx_autodetect;
 
     private boolean isBusy = false;
 
@@ -37,6 +35,10 @@ public class Connection extends SubForm {
                 btnConnect.setDisable(true);
             }
         });
+        cbx_autodetect.selectedProperty().addListener(observable -> {
+            inpPort.setDisable(cbx_autodetect.isSelected());
+            inpHost.setDisable(cbx_autodetect.isSelected());
+        });
 
         inpPort.getItems().addAll("30000", "38101");
         inpHost.getItems().addAll("game-nl.habbo.com", "game-us.habbo.com");
diff --git a/src/main/ui/logger/Logger.fxml b/src/main/ui/logger/Logger.fxml
index 175f6cb..01fdd4b 100644
--- a/src/main/ui/logger/Logger.fxml
+++ b/src/main/ui/logger/Logger.fxml
@@ -72,7 +72,7 @@
                 <VBox alignment="BOTTOM_LEFT" prefHeight="99.0" prefWidth="198.0" spacing="8.0" GridPane.rowIndex="1">
                     <children>
                         <CheckBox fx:id="cbx_showAdditional" mnemonicParsing="false" selected="true" text="Show additional data" />
-                        <CheckBox disable="true" mnemonicParsing="false" selected="true" text="Show packet structure" />
+                        <CheckBox fx:id="cbx_showstruct" mnemonicParsing="false" selected="true" text="Show packet structure" />
                         <CheckBox fx:id="cbx_splitPackets" mnemonicParsing="false" selected="true" text="Split packets" />
                     </children>
                     <GridPane.margin>
diff --git a/src/main/ui/logger/Logger.java b/src/main/ui/logger/Logger.java
index 6dff117..0dd12cb 100644
--- a/src/main/ui/logger/Logger.java
+++ b/src/main/ui/logger/Logger.java
@@ -12,6 +12,8 @@ import javafx.scene.text.TextFlow;
 import main.protocol.HConnection;
 import main.protocol.HMessage;
 import main.ui.SubForm;
+import main.ui.logger.loggerdisplays.PacketLogger;
+import main.ui.logger.loggerdisplays.PacketLoggerFactory;
 
 import java.util.Calendar;
 import java.util.HashMap;
@@ -28,43 +30,24 @@ public class Logger extends SubForm {
     public CheckBox cbx_useLog;
     public TextFlow txt_logField;
     public Button btnUpdate;
+    public CheckBox cbx_showstruct;
 
     private int packetLimit = 8000;
 
-    public final static Map<String, String> colorizePackets;
-
-    static {
-        //FOR GNOME ONLY, shows up colorized packets
-        colorizePackets = new HashMap<>();
-        colorizePackets.put("BLOCKED", (char)27 + "[35m");     // some kind of grey
-        colorizePackets.put("INCOMING", (char)27 + "[31m");    // red
-        colorizePackets.put("OUTGOING", (char)27 + "[34m");    // blue
-        colorizePackets.put("REPLACED", (char)27 + "[33m");    // yellow
-
-        // others:
-        colorizePackets.put("INJECTED", "");
-        colorizePackets.put("SKIPPED", (char)27 + "[36m");
-        colorizePackets.put("DEFAULT", (char)27 + "[0m");
-
-        if (System.getenv("XDG_CURRENT_DESKTOP") == null || !System.getenv("XDG_CURRENT_DESKTOP").toLowerCase().contains("gnome")) {
-            for (String key : colorizePackets.keySet()) {
-                colorizePackets.put(key, "");
-            }
-        }
-    }
-
+    private PacketLogger packetLogger = PacketLoggerFactory.get();
 
     public void onParentSet(){
-
         getHConnection().addStateChangeListener((oldState, newState) -> Platform.runLater(() -> {
             if (newState == HConnection.State.PREPARING) {
                 miniLogText(Color.ORANGE, "Connecting to "+getHConnection().getDomain() + ":" + getHConnection().getPort());
             }
             if (newState == HConnection.State.CONNECTED) {
                 miniLogText(Color.GREEN, "Connecting to "+getHConnection().getDomain() + ":" + getHConnection().getPort());
+                packetLogger.start();
             }
             if (newState == HConnection.State.NOT_CONNECTED) {
                 miniLogText(Color.RED, "End of connection");
+                packetLogger.stop();
             }
         }));
 
@@ -72,32 +55,23 @@ public class Logger extends SubForm {
             if (message.getDestination() == HMessage.Side.TOCLIENT && cbx_blockIn.isSelected() ||
                     message.getDestination() == HMessage.Side.TOSERVER && cbx_blockOut.isSelected()) return;
 
-            String splitter = cbx_splitPackets.isSelected() ? "-----------------------------------\n" : "";
-
-            String type = message.getDestination() == HMessage.Side.TOCLIENT ?"" +
-                            colorizePackets.get("INCOMING") + "INCOMING" :
-                            colorizePackets.get("OUTGOING") + "OUTGOING";
-
-            String additionalData = " ";
-            if (!message.isCorrupted() && cbx_showAdditional.isSelected()) {
-                additionalData = " (h:"+ message.getPacket().headerId() +", l:"+message.getPacket().length()+") ";
+            if (cbx_splitPackets.isSelected()) {
+                packetLogger.appendSplitLine();
             }
 
-            String arrow = "--> ";
+            int types = 0;
+            if (message.getDestination() == HMessage.Side.TOCLIENT) types |= PacketLogger.MESSAGE_TYPE.INCOMING.getValue();
+            else if (message.getDestination() == HMessage.Side.TOSERVER) types |= PacketLogger.MESSAGE_TYPE.OUTGOING.getValue();
+            if (message.getPacket().length() >= packetLimit) types |= PacketLogger.MESSAGE_TYPE.SKIPPED.getValue();
+            if (message.isBlocked()) types |= PacketLogger.MESSAGE_TYPE.BLOCKED.getValue();
+            if (message.getPacket().isReplaced()) types |= PacketLogger.MESSAGE_TYPE.REPLACED.getValue();
+            if (cbx_showAdditional.isSelected()) types |= PacketLogger.MESSAGE_TYPE.SHOW_ADDITIONAL_DATA.getValue();
 
-            String packet = message.isCorrupted() ?
-                    message.getPacket().getBytesLength() + " (encrypted)": // message.getPacket().toString() : // TEMP CODE TO VIEW ENCRYPTED BODY
-                    message.getPacket().length() < packetLimit ?
-                            message.getPacket().toString() :
-                            colorizePackets.get("SKIPPED") + "<packet skipped (length >= " + (packetLimit) + ")>";
-
-
-            String skipStyle = colorizePackets.get("DEFAULT");
-
-            String isBlocked = message.isBlocked() ? colorizePackets.get("BLOCKED") + "[BLOCKED] " : "";
-            String isEdited = !message.getPacket().isReplaced() || message.isBlocked() ? "" : colorizePackets.get("REPLACED") + "[REPLACED] ";
-            System.out.println(splitter + isBlocked + isEdited + type + additionalData + arrow + packet + skipStyle);
+            packetLogger.appendMessage(message.getPacket(), types);
 
+            if (cbx_showstruct.isSelected() && message.getPacket().length() < packetLimit) {
+                packetLogger.appendStructure(message.getPacket());
+            }
         });
         });
     }
diff --git a/src/main/ui/logger/loggerdisplays/GnomeTerminalLogger.java b/src/main/ui/logger/loggerdisplays/GnomeTerminalLogger.java
new file mode 100644
index 0000000..b00b593
--- /dev/null
+++ b/src/main/ui/logger/loggerdisplays/GnomeTerminalLogger.java
@@ -0,0 +1,73 @@
+package main.ui.logger.loggerdisplays;
+
+import main.protocol.HPacket;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Created by Jonas on 04/04/18.
+ */
+class GnomeTerminalLogger extends SimpleTerminalLogger {
+
+    public final static Map<String, String> colorizePackets;
+    static {
+        //FOR GNOME ONLY, shows up colorized packets
+        colorizePackets = new HashMap<>();
+        colorizePackets.put("BLOCKED", (char) 27 + "[35m");     // some kind of grey
+        colorizePackets.put("INCOMING", (char) 27 + "[31m");    // red
+        colorizePackets.put("OUTGOING", (char) 27 + "[34m");    // blue
+        colorizePackets.put("REPLACED", (char) 27 + "[33m");    // yellow
+
+        // others:
+        colorizePackets.put("INJECTED", "[32m");
+        colorizePackets.put("SKIPPED", (char) 27 + "[36m");
+        colorizePackets.put("EXPRESSION", (char) 27 + "[36m");
+        colorizePackets.put("DEFAULT", (char) 27 + "[0m");
+    }
+
+    @Override
+    public void appendMessage(HPacket packet, int types) {
+        StringBuilder output = new StringBuilder();
+
+        if ((types & MESSAGE_TYPE.BLOCKED.getValue()) != 0) {
+            output.append(colorizePackets.get("BLOCKED")).append("[BLOCKED] ");
+        }
+        else if ((types & MESSAGE_TYPE.REPLACED.getValue()) != 0) {
+            output.append(colorizePackets.get("REPLACED")).append("[REPLACED] ");
+        }
+
+        output.append(
+                (types & MESSAGE_TYPE.INCOMING.getValue()) != 0 ?
+                        colorizePackets.get("INCOMING") + "INCOMING " :
+                        colorizePackets.get("OUTGOING") + "OUTGOING "
+        );
+
+        if ((types & MESSAGE_TYPE.SHOW_ADDITIONAL_DATA.getValue()) != 0) {
+            output.append("(h:").append(packet.headerId()).append(", l:").append(packet.length()).append(") ");
+        }
+
+        output.append("--> ");
+
+        output.append( (types & MESSAGE_TYPE.SKIPPED.getValue()) != 0 ?
+                colorizePackets.get("SKIPPED") +  "<packet skipped>" :
+                packet.toString()
+        );
+
+        output.append(colorizePackets.get("DEFAULT"));
+
+        System.out.println(output.toString());
+    }
+
+    @Override
+    public void appendStructure(HPacket packet) {
+        String expr = packet.toExpression();
+        if (!expr.equals("")) {
+            System.out.println(
+                    colorizePackets.get("EXPRESSION") +
+                            expr +
+                            colorizePackets.get("DEFAULT")
+            );
+        }
+    }
+}
diff --git a/src/main/ui/logger/loggerdisplays/PacketLogger.java b/src/main/ui/logger/loggerdisplays/PacketLogger.java
new file mode 100644
index 0000000..7f2c50e
--- /dev/null
+++ b/src/main/ui/logger/loggerdisplays/PacketLogger.java
@@ -0,0 +1,38 @@
+package main.ui.logger.loggerdisplays;
+
+import main.protocol.HMessage;
+import main.protocol.HPacket;
+
+/**
+ * Created by Jonas on 04/04/18.
+ */
+public interface PacketLogger {
+
+    enum MESSAGE_TYPE {
+        BLOCKED(1),
+        INCOMING(2),
+        OUTGOING(4),
+        REPLACED(8),
+        INJECTED(16),
+        SKIPPED(32), // don't display the whole packet
+        SHOW_ADDITIONAL_DATA(64);
+
+        private int val;
+        MESSAGE_TYPE(int val)
+        {
+            this.val = val;
+        }
+        public int getValue()
+        {
+            return val;
+        }
+    }
+
+    void start();
+    void stop();
+
+    void appendSplitLine();
+    void appendMessage(HPacket packet, int types);
+    void appendStructure(HPacket packet);
+
+}
diff --git a/src/main/ui/logger/loggerdisplays/PacketLoggerFactory.java b/src/main/ui/logger/loggerdisplays/PacketLoggerFactory.java
new file mode 100644
index 0000000..bb74f55
--- /dev/null
+++ b/src/main/ui/logger/loggerdisplays/PacketLoggerFactory.java
@@ -0,0 +1,15 @@
+package main.ui.logger.loggerdisplays;
+
+/**
+ * Created by Jonas on 04/04/18.
+ */
+public class PacketLoggerFactory {
+
+    public static PacketLogger get() {
+        if (System.getenv("XDG_CURRENT_DESKTOP") != null && System.getenv("XDG_CURRENT_DESKTOP").toLowerCase().contains("gnome")) {
+            return new GnomeTerminalLogger();
+        }
+        return new SimpleTerminalLogger();
+    }
+
+}
diff --git a/src/main/ui/logger/loggerdisplays/SimpleTerminalLogger.java b/src/main/ui/logger/loggerdisplays/SimpleTerminalLogger.java
new file mode 100644
index 0000000..badedd0
--- /dev/null
+++ b/src/main/ui/logger/loggerdisplays/SimpleTerminalLogger.java
@@ -0,0 +1,60 @@
+package main.ui.logger.loggerdisplays;
+
+import main.protocol.HPacket;
+
+/**
+ * Created by Jonas on 04/04/18.
+ */
+class SimpleTerminalLogger implements PacketLogger {
+    @Override
+    public void start() {
+//        System.out.println("-- START OF SESSION --");
+    }
+
+    @Override
+    public void stop() {
+//        System.out.println("-- END OF SESSION --");
+    }
+
+    @Override
+    public void appendSplitLine() {
+        System.out.println("-----------------------------------");
+    }
+
+    @Override
+    public void appendMessage(HPacket packet, int types) {
+        StringBuilder output = new StringBuilder();
+
+        if ((types & MESSAGE_TYPE.BLOCKED.getValue()) != 0) {
+            output.append("[BLOCKED] ");
+        }
+        else if ((types & MESSAGE_TYPE.REPLACED.getValue()) != 0) {
+            output.append("[REPLACED] ");
+        }
+
+        output.append(
+                (types & MESSAGE_TYPE.INCOMING.getValue()) != 0 ?
+                        "INCOMING " :
+                        "OUTGOING "
+        );
+
+        if ((types & MESSAGE_TYPE.SHOW_ADDITIONAL_DATA.getValue()) != 0) {
+            output.append("(h:").append(packet.headerId()).append(", l:").append(packet.length()).append(") ");
+        }
+
+        output.append("--> ");
+
+        output.append( (types & MESSAGE_TYPE.SKIPPED.getValue()) != 0 ?
+                "<packet skipped>" :
+                packet.toString()
+        );
+    }
+
+    @Override
+    public void appendStructure(HPacket packet) {
+        String expr = packet.toExpression();
+        if (!expr.equals("")) {
+            System.out.println(expr);
+        }
+    }
+}
diff --git a/src/main/ui/tools/Tools.fxml b/src/main/ui/tools/Tools.fxml
index e2184fe..42620df 100644
--- a/src/main/ui/tools/Tools.fxml
+++ b/src/main/ui/tools/Tools.fxml
@@ -126,22 +126,22 @@
                   <Insets />
                </GridPane.margin>
                <children>
-                  <Button disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" text="------&gt;" GridPane.columnIndex="1" GridPane.halignment="CENTER">
+                  <Button fx:id="btn_toExpr" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#btn_toExpr_clicked" text="------&gt;" GridPane.columnIndex="1" GridPane.halignment="CENTER">
                      <GridPane.margin>
                         <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
                      </GridPane.margin>
                   </Button>
-                  <TextArea disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="200.0" prefWidth="200.0" GridPane.halignment="CENTER">
+                  <TextArea fx:id="txt_packetArea" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="200.0" prefWidth="200.0" wrapText="true" GridPane.halignment="CENTER">
                      <GridPane.margin>
                         <Insets bottom="7.0" left="7.0" right="5.0" top="7.0" />
                      </GridPane.margin>
                   </TextArea>
-                  <Button disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" text="&lt;------" GridPane.columnIndex="2" GridPane.halignment="CENTER">
+                  <Button fx:id="btn_toPacket" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#btn_toPacket_clicked" text="&lt;------" GridPane.columnIndex="2" GridPane.halignment="CENTER">
                      <GridPane.margin>
                         <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
                      </GridPane.margin>
                   </Button>
-                  <TextArea disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="3" GridPane.halignment="CENTER">
+                  <TextArea fx:id="txt_exprArea" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="200.0" prefWidth="200.0" wrapText="true" GridPane.columnIndex="3" GridPane.halignment="CENTER">
                      <GridPane.margin>
                         <Insets bottom="7.0" left="5.0" right="7.0" top="7.0" />
                      </GridPane.margin>
diff --git a/src/main/ui/tools/Tools.java b/src/main/ui/tools/Tools.java
index 6eaeaca..c4bf28f 100644
--- a/src/main/ui/tools/Tools.java
+++ b/src/main/ui/tools/Tools.java
@@ -3,6 +3,7 @@ package main.ui.tools;
 import javafx.event.ActionEvent;
 import javafx.event.EventHandler;
 import javafx.scene.control.Button;
+import javafx.scene.control.TextArea;
 import javafx.scene.control.TextField;
 import javafx.scene.input.KeyCode;
 import javafx.scene.input.KeyEvent;
@@ -23,6 +24,12 @@ public class Tools extends SubForm {
     public Button btnEncodeUShort;
     public Button btnDecodeUshort;
 
+    public Button btn_toExpr;
+    public TextArea txt_packetArea;
+    public Button btn_toPacket;
+    public TextArea txt_exprArea;
+
+    //TODO: toExpression() without bytelength limit for this use only
 
     public void initialize() {
         txt_intDecoded.textProperty().addListener(observable -> {
@@ -98,11 +105,9 @@ public class Tools extends SubForm {
         HPacket packet = new HPacket(b.array());
         txt_intEncoded.setText(packet.toString());
     }
-
     public void btnDecodeInt_clicked(ActionEvent actionEvent) {
         txt_intDecoded.setText(new HPacket(txt_intEncoded.getText()).readInteger(0) + "");
     }
-
     public void btnEncodeUShort_clicked(ActionEvent actionEvent) {
         ByteBuffer b = ByteBuffer.allocate(4);
         b.putInt(Integer.parseInt(txt_ushortDecoded.getText()));
@@ -110,8 +115,16 @@ public class Tools extends SubForm {
         HPacket packet = new HPacket(new byte[]{b.array()[2], b.array()[3]});
         txt_ushortEncoded.setText(packet.toString());
     }
-
     public void btnDecodeUshort_clicked(ActionEvent actionEvent) {
         txt_ushortDecoded.setText(new HPacket(txt_ushortEncoded.getText()).readUshort(0) + "");
     }
+
+
+    public void btn_toExpr_clicked(ActionEvent actionEvent) {
+        txt_exprArea.setText(new HPacket(txt_packetArea.getText()).toExpression());
+    }
+
+    public void btn_toPacket_clicked(ActionEvent actionEvent) {
+        txt_packetArea.setText(new HPacket(txt_exprArea.getText()).toString());
+    }
 }