I used to use jet screenshot, but switched to screenshot captor because I can easily make it put a thin black border around all my screen captures (yay!).  In jet screenshot I had specified ctl e as the hotkey to capture a region, but in screenshot captor I can't.  When I try to type in ctl e next to Capture selected region, in the preferences, a dialogue box pops up called "Save copy of image as."

I would prefer to use ctl e because my fingers are already trained to do that.

Thank you.