How to export keyboard shortcuts

I play on 2 different machines and I'd like to have the same shortcuts on each. I know there's no 'export' button in the settings but could a copy a settings file from one computer to the other? (json or whatever format you use). Both computers are running OSX.
Thanks!
(I'm not using hotbuild2.)

You could just copy the entire PA user data directory. That would copy over all settings and Galactic Wars. The user data is stored here: "~/Library/Application Support/Uber Entertainment/Planetary Annihilation" (where ~ is you home directory).