Yeah, it really limits the usefulness of Snapshot mode that you can't send midi commands when choosing a snapshot. You can go on Ideascale and vote for it--not sure how much that influences Line 6. But it doesn't seem to be something beyond the capabilities of the Stomp. For some reason they just haven't included it. The only real option you have is to add another footswitch controller like a Disaster Area or Morningstar that could simultaneously switch snapshots on the Stomp and the VLab.