1) Either is fine. 2) I'm not sure which CC mode you will want this set to. Likely one of the Relative settings (Two's Complement, Binary Offset, or MSB). I'm not sure of the exact names of these, as I'm out of the office at the moment. 3) The best way to do this is with a preset set to Empty/None. 4) No, this isn't possible at the moment. The button before the X is for re-learning the MIDI control/note. 14-bit is for 14-bit MIDI controls (which are sent using 2 MIDI messages instead of a single one).