So i went investigating as to what is possible. 

Turns out that every parameter can be individually controlled via midi separately. 

Since the es5 can send 8 separate midi commands at a time, and each of those commands can be a ongoing wav midi adjustment then it would seem that the sky is the limit. 

To be clear. 

I can control 8 parameters and each can be can be controlled by a ramping,  sine,  triangular or square wave where i can set the max and min values and the speed of the wav.  Speed of the wav can either be set in ms or in note lengths to suit the bpm.   Ie quavers, etc

Ie.  Assume you have 8 separate expression pedals operating at once

ps.  Loving this h9/es5 combo more and more.   Powerful combo.