diff --git a/app/src/main/java/com/stardust/scriptdroid/external/floatingwindow/FloatyWindowManger.java b/app/src/main/java/com/stardust/scriptdroid/external/floatingwindow/FloatyWindowManger.java
new file mode 100644
index 00000000..f741b578
--- /dev/null
+++ b/app/src/main/java/com/stardust/scriptdroid/external/floatingwindow/FloatyWindowManger.java
@@ -0,0 +1,52 @@
+package com.stardust.scriptdroid.external.floatingwindow;
+
+import android.content.Context;
+import android.content.Intent;
+import android.view.WindowManager;
+import android.widget.Toast;
+
+import com.stardust.enhancedfloaty.FloatyService;
+import com.stardust.enhancedfloaty.FloatyWindow;
+import com.stardust.enhancedfloaty.util.FloatingWindowPermissionUtil;
+import com.stardust.scriptdroid.R;
+
+import ezy.assist.compat.SettingsCompat;
+
+/**
+ * Created by Stardust on 2017/9/30.
+ */
+
+public class FloatyWindowManger {
+
+    public static void addWindow(Context context, FloatyWindow window) {
+        context.startService(new Intent(context, FloatyService.class));
+        if (SettingsCompat.canDrawOverlays(context)) {
+            Toast.makeText(context, R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
+            manageDrawOverlays(context);
+            return;
+        }
+        try {
+            FloatyService.addWindow(window);
+            // SecurityException: https://github.com/hyb1996-guest/AutoJsIssueReport/issues/4781
+        } catch (Exception e) {
+            e.printStackTrace();
+            manageDrawOverlays(context);
+            Toast.makeText(context, R.string.text_no_floating_window_permission, Toast.LENGTH_SHORT).show();
+
+        }
+    }
+
+
+    public static void manageDrawOverlays(Context context) {
+        try {
+            SettingsCompat.manageDrawOverlays(context);
+        } catch (Exception ex) {
+            FloatingWindowPermissionUtil.goToAppDetailSettings(context, context.getPackageName());
+        }
+    }
+
+
+    public static void closeWindow(FloatyWindow window) {
+        window.close();
+    }
+}
diff --git a/app/src/main/java/com/stardust/scriptdroid/script/ScriptFile.java b/app/src/main/java/com/stardust/scriptdroid/script/ScriptFile.java
index 87714d18..bab57a3a 100644
--- a/app/src/main/java/com/stardust/scriptdroid/script/ScriptFile.java
+++ b/app/src/main/java/com/stardust/scriptdroid/script/ScriptFile.java
@@ -2,6 +2,7 @@ package com.stardust.scriptdroid.script;
 
 import android.os.Environment;
 import android.renderscript.Script;
+import android.support.annotation.Nullable;
 
 import com.stardust.autojs.script.AutoFileSource;
 import com.stardust.autojs.script.JavaScriptFileSource;
@@ -34,6 +35,11 @@ public class ScriptFile extends File {
         init();
     }
 
+    public ScriptFile(String parent, String name) {
+        super(parent, name);
+        init();
+    }
+
     private void init() {
         mSimplifiedName = PFile.getNameWithoutExtension(getName());
         mSimplifyPath = getPath();
@@ -54,6 +60,17 @@ public class ScriptFile extends File {
             return renameTo(new File(getParent(), newName + "." + getExtension()));
     }
 
+    @Nullable
+    public ScriptFile renameAndReturnNewFile(String newName) {
+        ScriptFile newFile = isDirectory() ? new ScriptFile(getParent(), newName) :
+                new ScriptFile(getParent(), newName + "." + getExtension());
+        if (renameTo(newFile)) {
+            return newFile;
+        } else {
+            return null;
+        }
+    }
+
     private String getExtension() {
         return PFile.getExtension(getName());
     }
@@ -123,10 +140,10 @@ public class ScriptFile extends File {
         return renameTo(new File(to, getName()));
     }
 
-    public ScriptSource toSource(){
-        if(getType() == TYPE_JAVA_SCRIPT){
+    public ScriptSource toSource() {
+        if (getType() == TYPE_JAVA_SCRIPT) {
             return new JavaScriptFileSource(this);
-        }else {
+        } else {
             return new AutoFileSource(this);
         }
     }
diff --git a/app/src/main/java/com/stardust/scriptdroid/script/StorageFileProvider.java b/app/src/main/java/com/stardust/scriptdroid/script/StorageFileProvider.java
index 742da390..f69a65e7 100644
--- a/app/src/main/java/com/stardust/scriptdroid/script/StorageFileProvider.java
+++ b/app/src/main/java/com/stardust/scriptdroid/script/StorageFileProvider.java
@@ -4,18 +4,19 @@ import android.os.Environment;
 
 import com.stardust.scriptdroid.App;
 import com.stardust.scriptdroid.R;
-import com.stardust.util.FileSorter;
 import com.stardust.util.LimitedHashMap;
 
 import org.greenrobot.eventbus.EventBus;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import java.util.Map;
 
 import io.reactivex.Observable;
-import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.ObservableSource;
 import io.reactivex.annotations.NonNull;
 import io.reactivex.functions.Function;
-import io.reactivex.schedulers.Schedulers;
 
 /**
  * Created by Stardust on 2017/3/31.
@@ -23,13 +24,48 @@ import io.reactivex.schedulers.Schedulers;
 
 public class StorageFileProvider {
 
+    public static final int REMOVE = 0;
+    public static final int CREATE = 1;
+    public static final int CHANGE = 2;
+    public static final int ALL = 3;
 
     public static class DirectoryChangeEvent {
 
-        public ScriptFile directory;
+
+        private final ScriptFile mDir;
+        private final int mChange;
+        private final ScriptFile mFile;
+        private final ScriptFile mNewFile;
+
+        public DirectoryChangeEvent(ScriptFile dir, int change, ScriptFile file) {
+            this(dir, change, file, file);
+        }
 
         public DirectoryChangeEvent(ScriptFile directory) {
-            this.directory = directory;
+            this(directory, ALL, null);
+        }
+
+        public DirectoryChangeEvent(ScriptFile dir, int change, ScriptFile oldFile, ScriptFile newFile) {
+            mDir = dir;
+            mChange = change;
+            mFile = oldFile;
+            mNewFile = newFile;
+        }
+
+        public ScriptFile getDir() {
+            return mDir;
+        }
+
+        public int getChange() {
+            return mChange;
+        }
+
+        public ScriptFile getFile() {
+            return mFile;
+        }
+
+        public ScriptFile getNewFile() {
+            return mNewFile;
         }
     }
 
@@ -53,7 +89,7 @@ public class StorageFileProvider {
     }
 
     private EventBus mDirectoryEventBus = new EventBus();
-    private LimitedHashMap<String, ScriptFile[]> mScriptFileCache;
+    private LimitedHashMap<String, List<ScriptFile>> mScriptFileCache;
     private ScriptFile mInitialDirectory;
     private ScriptFile[] mInitialDirectoryScriptFiles;
 
@@ -75,6 +111,35 @@ public class StorageFileProvider {
         mDirectoryEventBus.post(new DirectoryChangeEvent(directory));
     }
 
+    public void notifyFileChanged(ScriptFile dir, ScriptFile oldFile, ScriptFile newFile) {
+        List<ScriptFile> files = getScriptFilesFromCache(dir);
+        if (files == null)
+            return;
+        int i = files.indexOf(oldFile);
+        if (i >= 0) {
+            files.set(i, newFile);
+            mDirectoryEventBus.post(new DirectoryChangeEvent(dir, CHANGE, oldFile, newFile));
+        }
+    }
+
+
+    public void notifyFileRemoved(ScriptFile dir, ScriptFile file) {
+        List<ScriptFile> files = getScriptFilesFromCache(dir);
+        if (files == null)
+            return;
+        if (files.remove(file)) {
+            mDirectoryEventBus.post(new DirectoryChangeEvent(dir, REMOVE, file));
+        }
+    }
+
+    public void notifyFileCreated(ScriptFile dir, ScriptFile file) {
+        List<ScriptFile> files = getScriptFilesFromCache(dir);
+        if (files == null)
+            return;
+        files.add(0, file);
+        mDirectoryEventBus.post(new DirectoryChangeEvent(dir, CREATE, file));
+    }
+
     public void notifyStoragePermissionGranted() {
         mScriptFileCache.clear();
         mInitialDirectoryScriptFiles = null;
@@ -101,11 +166,11 @@ public class StorageFileProvider {
     }
 
     public Observable<ScriptFile> getDirectoryScriptFiles(ScriptFile directory) {
-        ScriptFile[] scriptFiles = getScriptFilesFromCache(directory);
+        List<ScriptFile> scriptFiles = getScriptFilesFromCache(directory);
         if (scriptFiles == null) {
-            return listAndSortFiles(directory);
+            return listFiles(directory);
         }
-        return Observable.fromArray(scriptFiles);
+        return Observable.fromIterable(scriptFiles);
     }
 
     private void clearCache(ScriptFile directory) {
@@ -113,27 +178,19 @@ public class StorageFileProvider {
     }
 
 
-    private Observable<ScriptFile> listAndSortFiles(ScriptFile directory) {
+    private Observable<ScriptFile> listFiles(ScriptFile directory) {
         return Observable.just(directory)
-                .observeOn(Schedulers.computation())
-                .flatMap(new Function<ScriptFile, Observable<ScriptFile>>() {
-
-
+                .flatMap(new Function<ScriptFile, ObservableSource<ScriptFile>>() {
                     @Override
-                    public Observable<ScriptFile> apply(@NonNull ScriptFile dir) throws Exception {
+                    public ObservableSource<ScriptFile> apply(@NonNull ScriptFile dir) throws Exception {
                         ScriptFile[] scriptFiles = dir.listFiles();
-                        if (scriptFiles == null) {
-                            return Observable.empty();
-                        } else {
-                            FileSorter.sort(scriptFiles, FileSorter.NAME);
-                            mScriptFileCache.put(dir.getPath(), scriptFiles);
-                            return Observable.fromArray(scriptFiles);
-                        }
+                        mScriptFileCache.put(dir.getPath(), new ArrayList<>(Arrays.asList(scriptFiles)));
+                        return Observable.fromArray(scriptFiles);
                     }
                 });
     }
 
-    private ScriptFile[] getScriptFilesFromCache(ScriptFile directory) {
+    private List<ScriptFile> getScriptFilesFromCache(ScriptFile directory) {
         return mScriptFileCache.get(directory.getPath());
     }
 
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java b/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java
index 10dd170e..83ba0344 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/common/ScriptOperations.java
@@ -47,11 +47,13 @@ public class ScriptOperations {
     private Context mContext;
     private View mView;
     private ScriptFile mCurrentDirectory;
+    private StorageFileProvider mStorageFileProvider;
 
     public ScriptOperations(Context context, View view, ScriptFile currentDirectory) {
         mContext = context;
         mView = view;
         mCurrentDirectory = currentDirectory;
+        mStorageFileProvider = StorageFileProvider.getDefault();
     }
 
     public ScriptOperations(Context context, View view) {
@@ -83,9 +85,10 @@ public class ScriptOperations {
                     PFile.write(path, script);
                 } catch (UncheckedIOException e) {
                     showMessage(R.string.text_file_write_fail);
+                    return;
                 }
             }
-            notifyScriptFileChanged();
+            mStorageFileProvider.notifyFileCreated(mCurrentDirectory, new ScriptFile(path));
             if (edit)
                 Scripts.edit(path);
         } else {
@@ -115,7 +118,7 @@ public class ScriptOperations {
                         } else {
                             showMessage(R.string.text_import_fail);
                         }
-                        notifyScriptFileChanged();
+                        mStorageFileProvider.notifyFileCreated(mCurrentDirectory, new ScriptFile(pathTo));
                         return pathTo;
                     }
                 });
@@ -133,7 +136,7 @@ public class ScriptOperations {
                         } else {
                             showMessage(R.string.text_import_fail);
                         }
-                        notifyScriptFileChanged();
+                        mStorageFileProvider.notifyFileCreated(mCurrentDirectory, new ScriptFile(pathTo));
                         return pathTo;
                     }
                 });
@@ -147,7 +150,7 @@ public class ScriptOperations {
                     public void accept(@io.reactivex.annotations.NonNull String path) throws Exception {
                         if (new ScriptFile(getCurrentDirectory(), path).mkdirs()) {
                             showMessage(R.string.text_already_create);
-                            notifyScriptFileChanged();
+                            mStorageFileProvider.notifyFileCreated(mCurrentDirectory, new ScriptFile(path));
                         } else {
                             showMessage(R.string.text_create_fail);
                         }
@@ -155,10 +158,6 @@ public class ScriptOperations {
                 });
     }
 
-    private void notifyScriptFileChanged() {
-        StorageFileProvider.getDefault().notifyDirectoryChanged(mCurrentDirectory);
-    }
-
     private void showMessage(final int resId) {
         if (Looper.myLooper() == Looper.getMainLooper()) {
             showMessageWithoutThreadSwitch(resId);
@@ -218,13 +217,18 @@ public class ScriptOperations {
     }
 
     public Observable<Boolean> rename(final ScriptFile file) {
+        final ScriptFile oldFile = new ScriptFile(file.getPath());
         String originalName = file.getSimplifiedName();
         return showNameInputDialog(originalName, new InputCallback(file.isDirectory() ? null : PFile.getExtension(file.getName()),
                 originalName))
                 .map(new Function<String, Boolean>() {
                     @Override
                     public Boolean apply(@io.reactivex.annotations.NonNull String newName) throws Exception {
-                        return file.renameTo(newName);
+                        ScriptFile newFile = file.renameAndReturnNewFile(newName);
+                        if (newFile != null) {
+                            mStorageFileProvider.notifyFileChanged(mCurrentDirectory, oldFile, newFile);
+                        }
+                        return newFile != null;
                     }
                 });
     }
@@ -246,7 +250,8 @@ public class ScriptOperations {
                     @Override
                     public void accept(@io.reactivex.annotations.NonNull Boolean deleted) throws Exception {
                         showMessage(deleted ? R.string.text_already_delete : R.string.text_delete_failed);
-                        notifyScriptFileChanged();
+                        if (deleted)
+                            mStorageFileProvider.notifyFileRemoved(mCurrentDirectory, scriptFile);
                     }
                 });
     }
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/edit/CodeMirrorEditor.java b/app/src/main/java/com/stardust/scriptdroid/ui/edit/CodeMirrorEditor.java
index 47c936b3..7422998f 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/edit/CodeMirrorEditor.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/edit/CodeMirrorEditor.java
@@ -2,11 +2,13 @@ package com.stardust.scriptdroid.ui.edit;
 
 import android.content.Context;
 import android.content.DialogInterface;
+import android.graphics.Color;
 import android.os.Build;
 import android.support.annotation.RequiresApi;
 import android.util.AttributeSet;
 import android.util.TypedValue;
 import android.view.Gravity;
+import android.view.ViewGroup;
 import android.webkit.JavascriptInterface;
 import android.webkit.JsPromptResult;
 import android.webkit.JsResult;
@@ -59,7 +61,7 @@ public class CodeMirrorEditor extends FrameLayout {
 
     private static String[] sAvailableThemes;
     private String mTheme = "neo";
-    private MaterialProgressBar mProgressBar;
+    private FrameLayout mProgressBarContainer;
     private WebView mWebView;
     private JavaScriptBridge mJavaScriptBridge = new JavaScriptBridge();
     private Callback mCallback;
@@ -141,11 +143,15 @@ public class CodeMirrorEditor extends FrameLayout {
     }
 
     private void setupProgress() {
-        mProgressBar = new MaterialProgressBar(getContext());
+        mProgressBarContainer = new FrameLayout(getContext());
+        mProgressBarContainer.setBackgroundColor(Color.WHITE);
+        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
+        addView(mProgressBarContainer, params);
+        MaterialProgressBar progressBar = new MaterialProgressBar(getContext());
         int dp50 = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 50, getResources().getDisplayMetrics());
-        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(dp50, dp50);
-        params.gravity = Gravity.CENTER;
-        addView(mProgressBar, params);
+        FrameLayout.LayoutParams p = new FrameLayout.LayoutParams(dp50, dp50);
+        p.gravity = Gravity.CENTER;
+        mProgressBarContainer.addView(progressBar, p);
     }
 
     private void setupWebView() {
@@ -171,7 +177,7 @@ public class CodeMirrorEditor extends FrameLayout {
     }
 
     public void setProgress(boolean onProgress) {
-        mProgressBar.setVisibility(onProgress ? VISIBLE : GONE);
+        mProgressBarContainer.setVisibility(onProgress ? VISIBLE : GONE);
     }
 
     public void setText(final String text) {
@@ -464,7 +470,7 @@ public class CodeMirrorEditor extends FrameLayout {
 
         @Override
         public void onProgressChanged(WebView view, int newProgress) {
-            mProgressBar.setVisibility(newProgress == 100 ? GONE : VISIBLE);
+            setProgress(newProgress != 100);
         }
     }
 }
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/floating/EditorFloaty.java b/app/src/main/java/com/stardust/scriptdroid/ui/floating/EditorFloaty.java
index 1cc50bf6..f74a2c88 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/floating/EditorFloaty.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/floating/EditorFloaty.java
@@ -7,9 +7,11 @@ import android.view.ContextThemeWrapper;
 import android.view.View;
 
 import com.stardust.enhancedfloaty.FloatyService;
+import com.stardust.enhancedfloaty.FloatyWindow;
 import com.stardust.enhancedfloaty.ResizableFloaty;
 import com.stardust.enhancedfloaty.ResizableFloatyWindow;
 import com.stardust.scriptdroid.R;
+import com.stardust.scriptdroid.external.floatingwindow.FloatyWindowManger;
 import com.stardust.scriptdroid.script.ScriptFile;
 import com.stardust.scriptdroid.ui.edit.EditActivity_;
 import com.stardust.scriptdroid.ui.edit.EditorView;
@@ -41,8 +43,7 @@ public class EditorFloaty implements ResizableFloaty {
     }
 
     public static void floatingEdit(Context context, Intent intent) {
-        FloatyService.addWindow(new ResizableFloatyWindow(new EditorFloaty(intent)));
-        context.startService(new Intent(context, FloatyService.class));
+        FloatyWindowManger.addWindow(context, new ResizableFloatyWindow(new EditorFloaty(intent)));
     }
 
     public static void floatingEdit(Context context, String path) {
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListRecyclerView.java b/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListRecyclerView.java
index 168f7bd6..8f87090d 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListRecyclerView.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListRecyclerView.java
@@ -314,7 +314,7 @@ public class ScriptListRecyclerView extends RecyclerView {
 
     @Subscribe(threadMode = ThreadMode.MAIN)
     public void onDirectoryChange(StorageFileProvider.DirectoryChangeEvent event) {
-        if (event.directory.equals(mCurrentDirectory)) {
+        if (event.getDir().equals(mCurrentDirectory)) {
             updateCurrentDirectory();
         }
     }
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListView.java b/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListView.java
index 0b32ca31..9d07398f 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListView.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListView.java
@@ -30,6 +30,7 @@ import com.stardust.widget.BindableViewHolder;
 import org.greenrobot.eventbus.Subscribe;
 
 import java.util.concurrent.Callable;
+import java.util.regex.Pattern;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -104,7 +105,7 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
         initScriptListRecyclerView();
         mStorageFileProvider = StorageFileProvider.getDefault();
         setCurrentDirectory(mStorageFileProvider.getInitialDirectory());
-        //mStorageFileProvider.registerDirectoryChangeListener(this);
+        mStorageFileProvider.registerDirectoryChangeListener(this);
     }
 
     private void initScriptListRecyclerView() {
@@ -158,9 +159,10 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
 
     @Subscribe
     void onDirectoryChange(StorageFileProvider.DirectoryChangeEvent event) {
-        if (event.directory.equals(mCurrentDirectory)) {
-            loadScriptList();
+        if (!event.getDir().equals(mCurrentDirectory)) {
+            return;
         }
+        loadScriptList();
     }
 
     @Override
@@ -238,7 +240,7 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
-        //  mStorageFileProvider.unregisterDirectoryChangeListener(this);
+        mStorageFileProvider.unregisterDirectoryChangeListener(this);
     }
 
     private class ScriptListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
@@ -404,6 +406,9 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
         @BindView(R.id.order)
         ImageView mSortOrder;
 
+        @BindView(R.id.back)
+        ImageView mGoBack;
+
         private boolean mIsDir;
 
         CategoryViewHolder(View itemView) {
@@ -415,6 +420,11 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
         public void bind(Boolean isDirCategory, int position) {
             mTitle.setText(isDirCategory ? R.string.text_directory : R.string.text_file);
             mIsDir = isDirCategory;
+            if (isDirCategory && canGoBack()) {
+                mGoBack.setVisibility(VISIBLE);
+            } else {
+                mGoBack.setVisibility(GONE);
+            }
         }
 
         @OnClick(R.id.order)
@@ -441,5 +451,12 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
             popupMenu.show();
 
         }
+
+        @OnClick(R.id.back)
+        void back() {
+            if (canGoBack()) {
+                goBack();
+            }
+        }
     }
 }
diff --git a/app/src/main/java/com/stardust/scriptdroid/ui/viewmodel/ScriptList.java b/app/src/main/java/com/stardust/scriptdroid/ui/viewmodel/ScriptList.java
index 6cef647f..56133982 100644
--- a/app/src/main/java/com/stardust/scriptdroid/ui/viewmodel/ScriptList.java
+++ b/app/src/main/java/com/stardust/scriptdroid/ui/viewmodel/ScriptList.java
@@ -77,10 +77,10 @@ public class ScriptList {
     }
 
     public void add(ScriptFile file) {
-        if (file.isFile()) {
-            mScriptFiles.add(file);
-        } else {
+        if (file.isDirectory()) {
             mDirectories.add(file);
+        } else {
+            mScriptFiles.add(file);
         }
     }
 
diff --git a/app/src/main/res/drawable/ic_dir_up.png b/app/src/main/res/drawable/ic_dir_up.png
new file mode 100644
index 00000000..c81ca1ad
Binary files /dev/null and b/app/src/main/res/drawable/ic_dir_up.png differ
diff --git a/app/src/main/res/layout/script_file_list_category.xml b/app/src/main/res/layout/script_file_list_category.xml
index 3e55004b..42149fc0 100644
--- a/app/src/main/res/layout/script_file_list_category.xml
+++ b/app/src/main/res/layout/script_file_list_category.xml
@@ -34,6 +34,17 @@
     </LinearLayout>
 
 
+    <ImageView
+        android:id="@+id/back"
+        android:layout_width="32dp"
+        android:layout_height="match_parent"
+        android:layout_gravity="center_vertical"
+        android:background="?selectableItemBackgroundBorderless"
+        android:clickable="true"
+        android:padding="9dp"
+        android:src="@drawable/ic_dir_up"
+        android:tint="#828384"/>
+
     <ImageView
         android:id="@+id/order"
         android:layout_width="32dp"