Ok, the Chat support person just told me "no, you can't do that." So there you go.

So the workaround(s) might be:
1) set the volume levels for each track/each song and save/load them every time.
2) In the Preferences for RealDrums or RealTracks I could set a default global volume reduction (e.g., RealDrums always -2dB)


DavidH
Denver, CO