The following menu items are selectable:
Undo/Redo 
, 
By choosing Undo, or the appropriate shortcut icon, the last action (e.g. move nodes) is reversed. If an object was deleted it will be restored with Undo (shortcut or symbol). The function Redo repeats the last action (e.g. insert nodes).
Clear command processor 
This function deletes the last stored functions.
Redo last menu command 
(only with opened model file)
By selecting this menu item or pressing the F12 key, the last menu function is repeated.
Project
Since this menu item is very complex, it is treated in a separate chapter.
Menu item: Project
Options 
Since this menu item is very complex, it is treated in a separate chapter.