I was just moved to JMP 11. Ctrl Q to shut down does not work for me. Also, if I go to the menu and pick "Exit JMP" it asks if I want to save files, with options "Save Individually" or "Save None". I pick "Save None" and it still goes through each file and asks if I want to save it. Has anyone else seen this? Is there an option I can pick in set-up to let me just do a quick exit instead of going through each file one at a time? I took a quick tour through the preferences menu but didn't find anything that looked promising.
As I recall, this was a bug in JMP11 that was addressed in a maintenance release. What version of JMP11 are you running? Also, you might consider updating further to run JMP12, which shouldn't have this issue.