I have a Launchcontrol XL too and would like to use it to control A4’s internal mixer (track levels and FX). I’d connect them directly via Retrokits RK-005 USB MISI HUB.
As far as I understand those parameters cannot be controlled via CCs but NPRM only. The Launchcontrol XL does not send NPRM so looks like there’s no way or is there?
No, seems I can’t access Audio In volumes since those are parameters of the FX track (are they exclusively though?). Which are, as you say, NPRM only. That would give me a total of 6 channels which would save me from buying (and having to carry around) a mixer.
But controlling just the standard track volumes is already something, thanks for that!