Same button switches back to the previously used scene

Switch back to the previously used scene. Would it be possible like on Helix to instantly and seamlessly Snapshot returns to the previously used by clicking the same button?
It would be enormously convenient. Ex. Imagine A, B, C, D are assigned to four scenes. One play A for the main theme and needs to use C for the quick fill-in, then would like to get back to A. To avoid dancing over the QC buttons, they would just hit again C (while it is active) to get back to previously used Scene - in this case A. Without thinking what should I stomp on, which button shall I hit? It would be best to program it as an optional feature to be used by those who want to.

Hi, there are a million requests for more footswitch functions. Here are the most popular (at least one of these includes what you’re asking for):

Thanks @DiffractionCircuit!
Please use the search function prior to submitting new requests. Thanks!