> I have tested the Doepfer A- 152, but it doesn't seem to suit my needs.
> Is it possible to change the CV inputs of the A-150 to a trigger input
> Or maybe it's too expensive
> Thanks
> Simon

From what you asked for several A-152 should be right solution.

Anyway: What should the A-150 trigger input do:

a) toggle between the two inputs
b) switch to input #2 as long the trigger signal is high

Version a) is already available with the A-150. If you want to toggle
between 2 inputs the A-151 could be used (limited to 2 steps by means of the
switch).

Best wishes
Dieter Doepfer