Xpantastic!

> It´s possible to connect momentary switches as also pedals w/ a pot inside to the Xpander.

> Momentary switches and pedals can be routed as modulation sources Pedal #1 / Pedal #2 to any modulation destination like VCAs, >Filter cutoff, resonance and so on.
Yes- but these will only provide on/off type of modulation, not a
smooth transition between a min and max value, like a pot would.
Perhaps you could smooth out the threshold between the on/off using
the Tracking Gens.

>>pedals in addition, - but that doesn´t mean the pedals transmit these controllers,
Of course not, not if it has a 1/4 inch jack on it. It's just a pot,
or an open/closed switch, no midi.