As a Nikon shooter, I was distressed to recently lose the old version of Capture NX2* when it became unsupported past the recent Mac OSX updates. Now I routinely need to use two, sometimes 3 different converter/editors. It would be lovely to have more than just the one E-for-editor either in the form of another couple of hot keys or perhaps just a small floating panel with configurable buttons for each editor. It would speed up workflow over the current right_click/scroll/highlight/click for selecting alternate editors.
I love Photo Mechanic and have now used it for years. And I'm always telling everyone how cool it is!!!
*(( NX2 was either absolutely hated or totally loved.