Tile a Background sprite, but with different image_indexes?



Probably a silly question, but:

At the moment I have a simple 32x32 sprite texture which is tiled horizontally and vertically in the background layer using the precooked stuff. Works fine.

Now - what if I wanted the said 32x32 sprite texture to have variations, but still tile vertically and horizontally? Maybe I am missing the obvious, but I can't quite think of a way of doing it in an efficient fashion. The camera will move very quickly, and also often leave the borders of the room.

Anyone has some ideas?