Don't know if this is new but I haven't really seen anything similar before. Small thing I came up with a few years ago and have turned out to be very useful in different kind of glue ups.
The feet under the clamping cauls are movable sideways, so I can (almost) always move them to a position where they won't interfere with my clamps. Distance to bench enough to reach with the clamp heads under the cauls. Bolts in threaded inserts in feet, routed t-tracks in the clamping caul. Full info in the video.
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https://youtu.be/EGOEedxhH1I