Having a "gate" time knob would be really great. However, NDLR just isn't architected to make that very easy to add at this point. An alternative, is use the mod matrix to output CCs to control the gate on your synth. For instance, by adjusting the ADSR for a shorter or longer decay. You might have to tweak the decay and sustain to get the gate variance you desire.
While you are looking up the CCs for Decay, also get the CCs for other interesting targets, like LFO speed and Filter cutoff and modulate those too! Modulating ADSR for filter cutoff is also cool.
That will help spice things up.
Edited: I said Release before, but Release doesn't happen until there's a note off. You want it to release sooner so you have to edit sustain and decay.
While you are looking up the CCs for Decay, also get the CCs for other interesting targets, like LFO speed and Filter cutoff and modulate those too! Modulating ADSR for filter cutoff is also cool.
That will help spice things up.Edited: I said Release before, but Release doesn't happen until there's a note off. You want it to release sooner so you have to edit sustain and decay.