I’m guessing it’s not presently possible, but would be a nice update.
I was having fun running a pattern and previewing sounds in the sound manager and thought it would be really great if enabling realtime recording would capture the played note as a sound lock. Pressing the record button seemed to revert the sound to what was saved with the kit. I’m not too well-versed in the file structure of the A4, so maybe someone knows a workaround, otherwise might be a nice feature request.