David's right

Mount cuttins far easier. However I wentto see a fellow photographer 11 years ago about a big group exhibition, to discover he was still producing his images the night before, when I asked about the portraits of all the photographers eshibiting there was silence, one piece of card 17 windows for the images & one for the title later - it worked

Three in frame yes, three on a sheet of papers not difficult but why add extra problems and work