Thanks for your response.
I tried with all combinations of the modules you suggested, but no success.
Here's a screenshot of just one example I've tested with:
I've tried many more variations and different cabling. It's either not holding the notes, or holding some kind of "output" with actually no sound (just shows a level on the main out). What do you mean with "pm in"?
Meanwhile I got
this module which could've been a workaround/solution, but this seems to be a bit buggy unfortunately.
I'm surprised that something like a "MIDI hold" module doesn't exist (at least I can't find one). Would be handy i.e. for evolving pad sounds, when you're only playing a chord here and there. Right now one hand is always tied up to the keyboard and that, well... sux.
Most Arpeggiators have a "hold" button. To me it doesn't sound too difficult to apply that to non-Arp usecase.
MIDI in > hold button "on" > cv/gate out > done
Already thought about trying to make a module with the Module Designer, but I got zero coding knowledge lol
