Top Tray with Magnets for GF Modular Drawer System

I love the Gridfinity Modular Drawer System by @chippwalters. But, I had 16U tall Tool Holders I wanted to have on the Top Tray. Without Magnets, the Tool Holders would fall-over if not careful. This remix adds 6x2 Magnets to the grid. The feet mount from the bottom. There are positioning holes on the bottom and the feet; But, the holes are shallow by necessity and not intended for a press-fit. I used a dab of CA glue to keep the Feet in-place.