Thyssen-Krupp Stairlift Switch Operator

The Thyssen-Krupp Stairlift is a very useful thing but if you want the lift coming down two levels you must hold down the switch for more than two and a half minute. For me this was so annoying that I made a tool for adding a HOLD-function to that switch. The waiting time remains but it is no longer necessary to hold your finger on the switchknob all the time.
Once the lift has arrived you have to release the switchshifter. Forgetting this can empty the battery stored in the switch. For the lif