Minor feature request: Allow bare "option" as a keypress in keymap.

I love sublime text, but one thing has kept me from switching from TextMate: the ability to flip between column selections and regular selection by hitting the "option" key. I've written a quick plug-in to do it, but I'd love to be able to use the same muscle-memory keybinding as textmate.

Would it be possible to add

["option"]

as a key-command?

Thanks for your wonderful work,

NJT