Updraft should be mappable under controls

I remapped my keyboard recently as I am a lefty, and quickly discovered that updraft (one of my most-used movement abilities) cannot be remapped from Spacebar... there's no option to map updraft anywhere in the controls. This is frustrating, since I remapped all other jump-related abilities to numpad 0 since I'm using the numpad for most of my movement and combat skills now, but still have to press space for updraft. Please add this to the controls list so I can remap it somewhere that makes sense in my new control scheme.