Vortex Sound Research

Hi is it possible that I can control my peak with 2 different controllers? For example I use my hydrasynth to control peak for poly at, but say I want to use my Nord as it has full size keybed, can I connect the peak to this at the same time? Isn't it something to do with midi thru etc? Sorry if it's a nooby question, would love a step by step answer if possible. Thanks!