11.13 delete
delete { <item number> }
The delete command removes vector graphics objects such as plots, arrows or text items from the current multiplot canvas. All vector graphics objects placed on multiplot canvases receive unique identification numbers which count sequentially from one, and which may be listed using the list command. The items to be deleted should be identified using a comma-separated list of their identification numbers. The example
delete 1,2,3
would remove item numbers 1, 2 and 3.
Having been deleted, multiplot items can be restored using the undelete command.