Editor utility functions.
| ClearProgressBar | Removes progress bar. | 
| CollectDeepHierarchy | Collect all objects in the hierarchy rooted at each of the given objects. | 
| CollectDependencies | Calculates and returns a list of all assets the assets listed in roots depend on. | 
| CompressTexture | Compress a texture. | 
| CopySerialized | Copy all settings of a Unity Object. | 
| CreateGameObjectWithHideFlags | Creates a game object with HideFlags and specified components. | 
| DisplayCancelableProgressBar | Displays or updates a progress bar that has a cancel button. | 
| DisplayDialog | Displays a modal dialog. | 
| DisplayDialogComplex | Displays a modal dialog with three buttons. | 
| DisplayPopupMenu | Displays a popup menu. | 
| DisplayProgressBar | Displays or updates a progress bar. | 
| ExtractOggFile | Saves an AudioClip or MovieTexture to a file. | 
| FocusProjectWindow | Brings the project window to the front and focuses it. | 
| FormatBytes | Returns a text for a number of bytes. | 
| GetObjectEnabled | Is the object enabled (0 disabled, 1 enabled, -1 has no enabled button). | 
| InstanceIDToObject | Translates an instance ID to a reference to an object. | 
| IsPersistent | Determines if an object is stored on disk. | 
| NaturalCompare | Human-like sorting. | 
| OpenFilePanel | Displays the "open file" dialog and returns the selected path name. | 
| OpenFilePanelWithFilters | Displays the "open file" dialog and returns the selected path name. | 
| OpenFolderPanel | Displays the "open folder" dialog and returns the selected path name. | 
| SaveFilePanel | Displays the "save file" dialog and returns the selected path name. | 
| SaveFilePanelInProject | Displays the "save file" dialog in the Assets folder of the project and returns the selected path name. | 
| SaveFolderPanel | Displays the "save folder" dialog and returns the selected path name. | 
| SetDirty | Marks target object as dirty. (Only suitable for non-scene objects). | 
| SetObjectEnabled | Set the enabled state of the object. | 
| SetSelectedWireframeHidden | Set whether the renderer's wireframe will be hidden when the renderer's gameobject is selected. | 
| UnloadUnusedAssetsImmediate | Unloads assets that are not used. |