That's what I originally wanted to do but my opener has a micro button soldered to a very small circuit board. There's no way to wire in an external switch that I can see.

I wondered why the frisbee was getting bigger......and then it hit me. '05 BA - Mulberry/Graphite,128 mains,42 pilots,TBS needles,drilled slides,debaffled stock pipes,Uni,no snorkel