UR824 in class-compliant mode and volume control


I’m forced to use my UR824 in class-compliant mode, since the Yamaha driver (v4.1.3) is no longer loaded after the latest Mac OS update (12.6.9).

Since the dspMixFX console no longer sees the audio interface set in this mode, is there a way to control the master volume via software, without having to use the hardware control? My audio interface sits far from my desk, so, I would find it very useful (and safer in case of loud bursts!).