Hi Alexandre

> and I cant really do this with any other module I think...

To be honest, I do not understand, what shoudl be the use whithin(!) a
modular signal path. I'd see it at the end of the signal path. And there
is no reason (but mechanically) to have it "inside" the modular system.

I can imagine much more something like a mixer with pre/post-aux-like
distribution. If this had a also a pan then it would be nice. There is a
matrix-mixer from Ken Stone, which works similar like this idea.

Btw from the technical side this is the most simple project for diy. It
is nearly the ideal beginners project. The description exists on
http://www.doepfer.de/DIY/a100_diy.htm. -> Chapter 3.

Florian