no, qtractor does not support CV automation, sorry.
and yes, you can only drive automation on regular control ports or parameters to plugins that are hosted in qtractor directly; plugins that are (sub)hosted inside carla don't get their parameters exposed to the parent host (qtractor), so that you cannot control them from qtractor automation, sorry again.
perhaps you may do some MIDI automation, via MIDI CC events, but that would have to be done on the MIDI track/clip performance data itself, not regular qtractor automation.
hi,
no, qtractor does not support CV automation, sorry.
and yes, you can only drive automation on regular control ports or parameters to plugins that are hosted in qtractor directly; plugins that are (sub)hosted inside carla don't get their parameters exposed to the parent host (qtractor), so that you cannot control them from qtractor automation, sorry again.
perhaps you may do some MIDI automation, via MIDI CC events, but that would have to be done on the MIDI track/clip performance data itself, not regular qtractor automation.
ps. also see CV/gate (wikipedia); JACK/LV2 CV (linuxmusicians).