I forgot to attach a proposed patch. This changes the keymapping for "C-c ," to use org-agenda-priority. It doesn't include a new keymapping to org-agenda-show-priority. I'm not sure what key mapping makes the most sense. It leaves the agenda menu and mouse functions for org-agenda-show-priority unchanged. I'm not concerned about the revised code or new functionality. I just want to avoid having to remember which sub-mode within org-mode I'm using when I set a task priority.