I'm a very heavy keyboard user who prefers not to have to reach for the mouse any more than necessary. One of the great things about Mac apps is that there are lots of conventions that are very widely followed, so usually, when you try a common keyboard shortcut it just works, regardless of the app.
In that vein, I keep reflexively trying to edit my shortcuts with
⌘+i, and that does nothing! Would you consider having that as a shortcut for right-click → edit...?