Let's say I want to print a photograph 8inches x 8 inches. I use the "Custom Contrain" option and enter 8 x 8 (how does it not that is inches not centimeters). I click CROP, and then DONE to return back to the thumbnail display. Then I go PRINT - and I get predefined print sizes, 4x6, 7x5, 10x8. So can I never print the size I want?