Open PI preset from surface

[EddieJones]

I put off Plugin Instantiation, Preset Recall and I/O patching (all the same thing) on S6 because I wanted to improve on what we have(scrolling through with the knob) on the older EUCON surfaces. Unfortunately the way I want to do it(in a more graphical way, using the S6 screen) turned out to be a lot larger task than originally thought, so got postponed.
It is still high on the list but we are working on Swap Layers and the Assignable Knob at the moment as these are controls not programed yet, plus an increase in performance. I hope to get to it after the next release.