Naaah gadgetry again in my view.
We have holes in our benches for a reason, a few bench dogs and some wedges and we got the same arrangement.
Looking at the picture, why would we need a right angle adjustable clamp to push on the side of a board if the board is properly milled and prepared. what will happen when that's released.
Then Bill we stuck with certain dimensions for the thickness of the wood. I like a lot of woodpecker stuff but this looks too fiddly. Sorry just my view.
I can see it being of use in a production shop for specific dedicated assembly jig, but a hobbyist , I dunno.