Layouts determine the overall look and position of User Interface (UI) elements of your app. You can rename a layout. You can swap the layout with one from either a template or an existing app. You can also revert the layout to the last time the app was saved.
As of version 5.3, the Components panel displays components in a tree-like hierarchy as they appear in the layout. Components which are not part of the layout hierarchy are listed separately at the bottom of the panel. You can also modify a layout.
