Note: Ive tested this with hardware synths, its not a VST/DAW issue.
(I’ll retitle thread title to reflect this better)
hmm, odd - you are correct hold/relatch is only working with the transport running.
I’m not sure why that limitation exists, most ‘live’ functions work without the transport,
and off-hand I can’t see think relatch/hold would depend on the transport.
it feels like a bug, since it not just that hold/relatch functionality does not work, it does send any notes on/off.
I suggest you raise a bug/feature request on the squarp contact form, perhaps this can be changed for a future release.
No… sustain is really a ‘controller’ function, rather than a sequencer function.
you have a few options:
a) your controller /synth may have pedal input (this is what I use)
if it does, it probably will send out midi CC 64 (aka hold) to control sustain
it may also have a latch function
b) external midi pedal/controller
this would support midi cc64, this can be setup as latch or momentary, so giving you hold or relatch
c) assign midi cc64 to a pyramid encoder
this way you can easily latch/sustain notes from the pyramid control surface