Ya, I feel like making it immobile is a cop-out on my part.
I stopped being a lazy b@stard and just scaled the meshes properly in FragMotion and now everything works.
Something else I noticed...the crates in the SciFi pack have a bone at the bottom of their mesh. I tried this and it fixed the problem of pressing "enter" and having the crate go halfway into the ground. I guess the bone tells FPSC where the bottom of the mesh is supposed to be. Possibly, perhaps...or so it seems.
But hey, it works and that's good enough for me. I'll post them later today.
Something else kinda cool in x10 (maybe this is also true in x9) but if you name your textures with the ending tag _1_D, _1_S, _1_N, _2_D, _2_S, _2_N, etc... FPSC will randomly select from these textures when you load the level. I noticed this feature from the barrels in the SCI FI pack. Maybe everyone already knows this, but anyway, that is how the crates I am making will work. I have 6 sets of textures that a single FPE file randomly selects from. No scripting is required. Just naming.