Lock for Multiboard Offset Snap for AMS Slim Riser

This is designed to keep a Multiboard panel that is suspended from @Sanja3D's Adjusted V4.5 AMS Glass Riser/Slider for P1S, X1C using @m3_makes Multiboard Offset Snap for V3/V4 AMS Slim Riser . The problem is the offset snap hangs the Multiboard off the riser using a French cleat, which can lift out really easily if the board or an attached accessory is bumped or dragged in an upward direction. I attached a track to a Multiboard remix snap (under this license) and modeled from scratch a small post that reaches from the track up to the bottom of the riser clip that supports the AMS. I won't say it makes it impossible to bump the Multiboard panel off the French cleat track, but it's a lot less likely. (Should also work with V3 and V4 of @Sanja3D's risers, but I didn't test that.)