Let autoexpand continue patterns from non-adjacent tiles

[slothybutt]

I have these 2 relay squares, and there's not a super easy way for me to autoexpand these shapes to get more. To make these squares I laid out all the relays for 2 of my machines next to each other and expanded them for the whole row, but I can't do that for these cubes since laying them out in a column would be 256 tiles and super annoying to chop up to fit in a level with any sort of structure.
I propose that, with the tiles I have selected in the picture, it could fill in the third relay using the pattern from the first 2 even though they are not directly adjacent.