Key Maps are sets of Hotkeys called Mapped Keys, which map a specific behavior to a specific Hotkey! The Mapped Key Wizard easily sets up new Mapped Keys.
Links for Realm of the Mad God tagged with Key Maps
This ISBoxer walkthrough demonstrates how to set up the MMO - Pro config style, which makes it easy to play more than one class and/or role simultaneously Pro ConfigAny GameISBoxer ConfigurationKey Maps
This post from the ISBoxer.com ROTMG forum has a Key Map you can drop in to your configuration for useful shortcuts, such as teleporting your guys to the same location using the game's /teleport command. Realm of the Mad GodISBoxer ConfigurationKey Maps