Hotkey question: Multiple keys, 1 function

Hi,

I was wondering if it is possible to bind multiple keys to 1 function.

I know the reverse is possible (fe. DE allows you to bind the E key to both aggressive and defensive stance)

So basically i would like to bind "Patrol" to the keys [E, R, Y].

I know this is not possible within the options menu of DE, but maybe it is possible using custom hotkey files (like in sc2).