Sorry if I'm misleading you, but isn't the Project Tab Option "synchronize any parent projects on playback" what you want?
I'm not at my Reaper computer now, and it's been a little while since I used SubProjects, but I think if you tick this option for the SubProject, then when you play back the SubProject, it will automatically play the output of the parent (main) project too, so you can hear the Sub in context.
Andy
|