Menu:Utilities->Undo
Do the undo of the last command done
Menu:Utilities->Redo
Revert the last undo, if any
Menu: Utilities->Undo multiple...
Undo window
With this command you can undo any previous commands executed since the the project was last saved or read. multiple last commands in a window.
To do this, select from the list of operations in the window so that they are highlighted redthe commands to be reverted, and click undo.
Menu: Utilities->Redo multiple...
With this command you can redo multiple last undo commands in a window.
