Logic Studio apps Polyverse Manipulator MIDI control in Mainstage

Hi all........I just got Polyverse Manipulator which can do great vocal processing with MIDI control. Works fine in Logic using the side chain on the plugin but not in Mainstage. Is it not possible??
Hi All.....still wondering if it's possible to use this plugin in Mainstage. I loaded it into an instrument track and set the side chain to input 1 ( audio track set to output 1 and muted). No sound coming into the instrument track. Am I missing something?