Manual:Time Line Tool Bars

Edit
Object edition.
 * Cut Cut the selected object to clipboard. Shortcut: +
 * Copy Copy the selected object to clipboard. Shortcut: +
 * Paste Paste object from clipboard. Shortcut: +
 * Delete Delete selected object Shortcut:
 * Free and delete Clear all dependencies of the scene on the selected object and delete it. Shortcut: +
 * Undo Undo the last action Shortcut: +
 * Redo Redo the last undone action Shortcut: +

Tools
Modeler tools.
 * Layers dialog Opens the layers dialog.
 * Sanity report Performs the scene sanity test and shows the results in sanity test reporter.