Modify Miele dishwasher to start automatically when power comes on

Does anyone know how to modify a Miele dishwasher so that it comes on automatically when the power comes on? I need this so that I can have it on a time switch to run on off peak power overnight. Would it work to just wire a toggle switch in parallel with the pushbutton that you normally have to use to start it? Or will this cause other problems ? I don’t want to have design a timer to close the switch a few seconds after the power comes on and release it a couple of seconds later unless this is really essential. Why didn’t they think of this when they designed it???
Thank you – Rowan