On my Windows copies, I use Right Shift and Numpad 1 for glancing left and right respectively, but I don't have that benefit on my Mac as the built-in keyboard does not have a numpad, and the cursor keys are too close to the right shift key.
I initially bound Mac Marathon glancing to semicolon and apostrophe but I don't think that's going to be practical when I start playing the Mac game.
Any ideas what the best glancing controls on a Mac keyboard are? Bear in mind I use the cursor keys and the mouse in my left hand, like a sensible PC/Mac gamer.