UNDO command displays the system name or variable in the Command prompt to indicate that we have gone past the point where the command is used.
In the AutoCAD 2012 or AutoCAD all versions always offer Undo and Redo commands.
AutoCAD always remembers every command that we run, starting from the moment we open the picture.
so that we can cancel any action and return to the picture with the condition when we opened it.
Every time we click Undo on the Quick Access toolbar, we cancel an order.
we can click the Undo button on the drop-down list and select a previous command to cancel orders and all orders then.
If we keep going back to the first command session, we cancel all orders and get the message: Everything has been undone
NEEW FFEEATUREE Undo button on the Quick Access toolbar now allows us to cancel some operations by clicking the down arrow on the right button and selecting an initial order that we want to cancel.
This procedure Cancel all orders we have chosen the top command.
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