It would be nice to have a printing layout just for problems' collection like the layout in Tasuki's tsumego collection: two columns of somewhat half board that display the problem. In this way, all the problems have the same size of stones, and look consistent.
I tried the zone in the corner option in Drago, and it works wonderfully but the layout always uneven, some small problem have big stones and big problem have small stones. Printing with zone in the corner unselect result in full board and that's just waste space.