Hello Frances,
yes it is, there are only two wires and you can either cut the wire partway up the wire and join as much as you want, or you can undo the foot control, undo the lead from the terminals and joind how ever much you want on and the connect the other end back up, I would opt for the first one, make sure you use the proper size cable and make sure it is connected using the proper connector and make sure the machine is unplugged before you do it from the wall.
Ken
drivewithken at blueyonder dot co dot uk, November 2009
