Did some experiments and found the following:
- A Soft Knob assigned to a MIDI controller will not have a value stored with the patch. This means that Snap mode can not work because there is no reference value, and therefore these Soft Knobs will behave same as in Jump mode.
- A Soft Knob assigned to a Virus parameter will have its value stored and works as expected in Snap mode.
Unfortunately:
- OSC Volume is not available as an assignable parameters (why not?! -> feature request)
- The only way to assign Soft Knobs to Matrix slots is via MIDI controllers, except for assigning a Matrix destination amount directly. However, that requires the Matrix to use a constant source.
- The Matrix does not have a "100% constant" source (-> feature request)
Found a workaround using the additional envelopes:
- Set Envelope 4 to Attack: 0, Decay: 0, Sustain: 33.6%, Release: 127
- Set up a Matrix slot (e.g.2) with Source: Envelope 4, Destination 1: OSC Volume
- Set up a Soft Knob to Assign 2 Amount 1
Now, Envelope 4 acts as constant value source for the Matrix slot and the Soft Knob which controls the Matrix assignment has an internal destination and therefore has the value stored.
Happy knob tweaking!
PS: Here are the related feature request threads: