Doepfer

I've got two A-155's and one A-154 driving them both. About half the time I'd like to be able 
to run them independently, mostly to send #2 a slower divided clock to control longer-
running musical modulations. Is there any way a switch could  be added to #2 (or A-154) to 
be able to switch between syncing to the 154 and syncing to #2's own sync input jack? 
Doesn't have to be CV controllable or anything, just an easy way to use #2 by itself 
occasionally. Be nice if the whole panel could be gotten back (like the reset button, etc) but 
I'd settle for just a different sync input at this point.

TIA
Phil