.....why has this capability not been explained as being feasible by Simplify3D???? This is obviously a by-product of being able to use a second extruder for supports, so soluble supports can be created.....but the ability to be able to point two settings at the same extruder has never been advertised.
This leads me to take the opportunity to raise the old chestnut of user documentation. With a slicer of such complexity of use, there needs to be GOOD documentation of its use....for the new users.....AND some more advanced Hints and Tips for those who have got the basics.
The interest in a complete user manual has been well expressed by our community and I would like to personally thank you for acknowledging this need once again.
Back to on topic discussion: Using virtual extruder controllers to change extrusion settings for supports is certainly a "Pro User" implementation of an existing feature set and I look forward to hearing any of your feedback on it's use here.
"A bird does not sing because it has an answer. It sings because it has a song."