Configurable Stage Pieces adapted for OpenLOCK Magnets

Melabam (the original creator) did a great job on this build! I typically use the two-magnet OpenLOCK 1/2 clip, so the stairs and stage front pieces having the regular OpenLOCK clip pre-installed did not work with the rest of my setup. I removed these clips and instead added two magnet holes in the places they would be, if there was instead a magnet OpenLOCK clip there. NOTE: I use 3x2mm barrel magnets, not the standard 3x4mm. This means that the holes are only 1/2 as deep as needed if you use the recommended magnets. In general I have found that the 2mm-thick barrel magnets are cheaper, more readily available, and strong enough for my purposes. I also included my remix of the OpenLOCK clip that accommodates 1/2 depth magnets, in case anyone else wants to experiment. (Of course, you can always use 3x2mm in the stage fronts and stairs and 3x4mm in your clips; magnets don't know how big they are! The stage floor pieces are exactly the same except that the center column has been removed. I found that printing the stage pieces standing on-edge saved time and material, especially because I could remove the center supports. Thank you to Melabam for your original work!