Hi Andrea,
1. Yes, your first question is possible. I just tried it! You just have to make sure that the MIDI OUTPUT of both pedals is set to "OUT" and not "THRU".
2. Yes, your second question is possible as well. If you plug an expression pedal into PitchFactor (keeping the factory default XMT CC for PDL to C15) and set TimeFactor RCV CTL/ PDL to C15, then you can control both PitchFactor and TimeFactor with the same expression pedal.
