Zita1

Hello, can somebody tell me how, under synth. the Zita 1 effects works?
I see 2 panels, and it seems as if it doesn't matter which one I use (A or B).
The meaning of this, I think, is to put delay, equaliser. etc. on a certain voice or instrument, but as far as I can see, it is effective on all instruments at the same time.

Thanx,
Frans