I've checked Mathematica → Preferences, and poked around the options on the toolbar. However, I don't see a way to define new keyboard shortcuts in Mathematica.
I've used VIM for 10+ years, and I've rebound Ctrl+F to be Esc for the last decade or so. I would like to also use this shortcut in Mathematica, to have Ctrl+F be Esc, so hitting something like:
should give me capital Sigma.
Question: how do I define new keybindings in Mathematica?
(I have a CS background, so I'd prefer things that involve editing config files / writing scripts -- that would give me more power -- over clicking things in a GUI).