AutoCAD Features to Improve Efficiency
OOPS (Command)
The OOPS command restores any items that the ERASE command previously deleted. It performs better than CTRL-Z since it reverses the last command to erase without damaging any work that has been done since the erase.
However, this command can only retrieve items that were previously erased.
Command : Oops ↵ Start the command then ENTER.
Additionally, you may use the commands OOPS after BLOCK or WBLOCK to remove the chosen objects after developing a block.
Objects on a layer that have been deleted with the PURGE command cannot be restored using OOPS.