VST Instruments Live Use

My situation: I have about 18 different sounds from Halion Sonic that I use for performing a live song. I would also like to use Grove Agent to play a variety of samples.

So far the only way I have figured out how to do this is have 18 separate tracks of Halion Sonic, and when need the certain sound I mute all the other tracks I don’t need. The problem I have faced is Grove agent wont work unless the track is selected. Is there any way to make Grove Agent work without having the tracked selected?