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diff --git a/app/src/main/assets/calculators/REALSX.KML b/app/src/main/assets/calculators/REALSX.KML
deleted file mode 100644
index 1a5bac7..0000000
--- a/app/src/main/assets/calculators/REALSX.KML
+++ /dev/null
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-	IfFlag 1
-		MenuItem 1
-	Else
-		Map 78 32
-	End
-End
-
-Scancode 79
-	Map 79 33
-End
-
-Scancode 80
-	Map 80 34
-End
-
-Scancode 81
-	Map 81 35
-End
-
-Scancode 82
-	Map 82 36
-End
-
-Scancode 83
-	Map 83 41
-End
-
-Scancode 84
-	Map 84 42
-End
-
-Scancode 85
-	Map 85 43
-End
-
-Scancode 86
-	Map 86 44
-End
-
-Scancode 87
-	Map 87 45
-End
-
-Scancode 88
-	Map 88 46
-End
-
-Scancode 89
-	Map 89 52
-End
-
-Scancode 90
-	Map 90 53
-End
-
-Scancode 96
-	Map 96 92
-End
-
-Scancode 97
-	Map 97 82
-End
-
-Scancode 98
-	Map 98 83
-End
-
-Scancode 99
-	Map 99 84
-End
-
-Scancode 100
-	Map 100 72
-End
-
-Scancode 101
-	Map 101 73
-End
-
-Scancode 102
-	Map 102 74
-End
-
-Scancode 103
-	Map 103 62
-End
-
-Scancode 104
-	Map 104 63
-End
-
-Scancode 105
-	Map 105 64
-End
-
-Scancode 106
-	Map 106 75
-End
-
-Scancode 107
-	Map 107 95
-End
-
-Scancode 109
-	Map 109 85
-End
-
-Scancode 110
-	Map 110 93
-End
-
-Scancode 111
-	Map 111 65
-End
-
-Scancode 186
-	IfFlag 0
-		Map 186 81
-		Map 186 95
-	End
-End
-
-Scancode 188
-	Map 188 71
-	Map 188 93
-End
-
-Scancode 190
-	Map 190 93
-End
-
-Scancode 191
-	IfFlag 0
-		Map 191 71
-		Map 191 55
-	Else
-		Map 191 65
-	End
-End
-
-Scancode 219
-	IfFlag 0
-		Map 219 71
-		Map 219 95
-	Else
-		Map 219 71
-		Map 219 75
-	End
-End
-
-Scancode 220
-	Map 220 54
-End
-
-Scancode 222
-	IfFlag 0
-		Map 222 81
-		Map 222 85
-	Else
-		Map 222 31
-	End
-End
-
-
-
-
-
-
diff --git a/app/src/main/assets/calculators/realgx.bmp b/app/src/main/assets/calculators/realgx.bmp
deleted file mode 100644
index 89bcde4..0000000
Binary files a/app/src/main/assets/calculators/realgx.bmp and /dev/null differ
diff --git a/app/src/main/assets/calculators/realsx.bmp b/app/src/main/assets/calculators/realsx.bmp
deleted file mode 100644
index 683854b..0000000
Binary files a/app/src/main/assets/calculators/realsx.bmp and /dev/null differ
diff --git a/app/src/main/java/org/emulator/forty/eight/MainActivity.java b/app/src/main/java/org/emulator/forty/eight/MainActivity.java
index b1c5d49..6c17047 100644
--- a/app/src/main/java/org/emulator/forty/eight/MainActivity.java
+++ b/app/src/main/java/org/emulator/forty/eight/MainActivity.java
@@ -66,6 +66,7 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
     public static final int INTENT_OBJECT_SAVE = 4;
     public static final int INTENT_SETTINGS = 5;
     public static final int INTENT_PORT2LOAD = 6;
+    public static final int INTENT_PICK_KML_FILE = 7;
 
     public static MainActivity mainActivity;
 
@@ -555,13 +556,12 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
                             @Override
                             public void onClick(DialogInterface dialog, int which) {
                                 if(which == lastIndex) {
-
+                                    Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+                                    intent.setType("file/*");
+                                    startActivityForResult(intent, INTENT_PICK_KML_FILE);
                                 } else {
                                     String kmlScriptFilename = kmlScripts.get(which).filename;
-                                    NativeLib.onFileNew(kmlScriptFilename);
-                                    displayFilename("");
-                                    showKMLLog();
-                                    updateNavigationDrawerItems();
+                                    newFileFromKML(kmlScriptFilename);
                                 }
                             }
                         }).show();
@@ -569,6 +569,13 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
         });
     }
 
+    private void newFileFromKML(String kmlScriptFilename) {
+        NativeLib.onFileNew(kmlScriptFilename);
+        displayFilename("");
+        showKMLLog();
+        updateNavigationDrawerItems();
+    }
+
     private void OnFileOpen() {
         ensureDocumentSaved(new Runnable() {
             @Override
@@ -771,52 +778,52 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
 
     @Override
     protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
-        if(resultCode == Activity.RESULT_OK) {
-
-            if(requestCode == INTENT_GETOPENFILENAME) {
-                Uri uri = data.getData();
-
-                //just as an example, I am writing a String to the Uri I received from the user:
-                Log.d(TAG, "onActivityResult INTENT_GETOPENFILENAME " + uri.toString());
-
-                String url = uri.toString();
-                if(onFileOpen(url) != 0) {
-                    saveLastDocument(url);
-                    makeUriPersistable(data, uri);
+        if(resultCode == Activity.RESULT_OK && data != null) {
+            Uri uri = data.getData();
+            String url = null;
+            if(uri != null)
+                url = uri.toString();
+            if(url != null)
+                switch (requestCode) {
+                    case INTENT_GETOPENFILENAME: {
+                        Log.d(TAG, "onActivityResult INTENT_GETOPENFILENAME " + url);
+                        if (onFileOpen(url) != 0) {
+                            saveLastDocument(url);
+                            makeUriPersistable(data, uri);
+                        }
+                        break;
+                    }
+                    case INTENT_GETSAVEFILENAME: {
+                        Log.d(TAG, "onActivityResult INTENT_GETSAVEFILENAME " + url);
+                        if (NativeLib.onFileSaveAs(url) != 0) {
+                            showAlert("State saved");
+                            saveLastDocument(url);
+                            makeUriPersistable(data, uri);
+                            displayFilename(url);
+                            if (fileSaveAsCallback != null)
+                                fileSaveAsCallback.run();
+                        }
+                        break;
+                    }
+                    case INTENT_OBJECT_LOAD: {
+                        Log.d(TAG, "onActivityResult INTENT_OBJECT_LOAD " + url);
+                        NativeLib.onObjectLoad(url);
+                        break;
+                    }
+                    case INTENT_OBJECT_SAVE: {
+                        Log.d(TAG, "onActivityResult INTENT_OBJECT_SAVE " + url);
+                        NativeLib.onObjectSave(url);
+                        break;
+                    }
+                    case INTENT_SETTINGS:
+                        break;
+                    case INTENT_PICK_KML_FILE:
+                        Log.d(TAG, "onActivityResult INTENT_OBJECT_SAVE " + url);
+                        newFileFromKML(url);
+                        break;
+                    default:
+                        break;
                 }
-            } else if(requestCode == INTENT_GETSAVEFILENAME) {
-                Uri uri = data.getData();
-
-                //just as an example, I am writing a String to the Uri I received from the user:
-                Log.d(TAG, "onActivityResult INTENT_GETSAVEFILENAME " + uri.toString());
-
-                String url = uri.toString();
-                if(NativeLib.onFileSaveAs(url) != 0) {
-                    showAlert("State saved");
-                    saveLastDocument(url);
-                    makeUriPersistable(data, uri);
-                    displayFilename(url);
-                    if(fileSaveAsCallback != null)
-                        fileSaveAsCallback.run();
-                }
-            } else if(requestCode == INTENT_OBJECT_LOAD) {
-                Uri uri = data.getData();
-
-                //just as an example, I am writing a String to the Uri I received from the user:
-                Log.d(TAG, "onActivityResult INTENT_OBJECT_LOAD " + uri.toString());
-
-                String url = uri.toString();
-                NativeLib.onObjectLoad(url);
-            } else if(requestCode == INTENT_OBJECT_SAVE) {
-                Uri uri = data.getData();
-
-                //just as an example, I am writing a String to the Uri I received from the user:
-                Log.d(TAG, "onActivityResult INTENT_OBJECT_SAVE " + uri.toString());
-
-                String url = uri.toString();
-                NativeLib.onObjectSave(url);
-            } else if(requestCode == INTENT_SETTINGS) {
-            }
         }
         fileSaveAsCallback = null;
         super.onActivityResult(requestCode, resultCode, data);