musocity has it right...I did just this the day before yesterday when the VST had another one of those days.
My usual process is:
AUDIO
AUDIO EXPORT
ONE FILE PER
24 bit (to match the rest of the project)
INDIVIDUAL TRACKS FLAT, DRY & CENTRE
RENDER (and select the project folder for the DAW & song).
Sometimes stereo isn't useful so I simply use the freeze & render mono one click option inside Reaper for tracks I want in mono (usually everything except drums).

Last edited by rayc; 10/31/22 04:27 PM.

Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe