undo/redo
It can record a series of operation processes of the user, and can restore to the current state according to the record. After the user performs an operation, he can return to the state before the operation by undoing. After the user undoes, he can also restore the previous state by redoing Undo operation.
undo
Undo the current operation and roll back the previous operation.
Steps:
Top Menu - Edit - Undo
Shortcut Ctrl + Z
redo
Redo restores a previously undone operation.
Steps:
Top Menu - Edit - Redo
Shortcut Ctrl + Y
