ne's manual

4.7.3: UndelLine

which was deleted with the DeleteLine command. If n is not specified, it is assumed to be one.

This command is most useful in that it allows a very fast way of moving one line around. Just delete it, and undelete it somewhere else. It is also an easy way to replicate a line without getting involved with clips.

Note that this command works independently of the status of the undo flag. See DoUndo.