Box Morph within custom grid on custom surface

I am trying to make a definition for a ceiling pattern that will place a set of closed curves: A and B, within each box of  a grid that I created. The size of the closed curve will not get bigger than the box it is contained within, and will scale proportionate to the distance from the columns spread beneath the ceiling.

I believe my definition will make use of box morph, my question is, how do I make several box morphs adhere to the curvature of my surface and to each box contained within my grid projected onto that surface. I am not sure how to reference two closed curves and how to alternate placing them in the box morph.

I'm not sure how to do an attractor with multiple points as well, to scale the pattern A and B within the grid cells scaled in proportion to the distance from the columns.

Many thanks fellow grasshoppers. I hope I was specific enough to get some help this time, if you have any questions please post them here, or message me. I'll upload the sketch I made so it'll be clearer but I have the rhino file up so you can see the geometry I am referencing.