Thanks!! You can definetly use Vizzie & Vsynth along. Check for example the second tab of the “Mixers 2” Lesson or the “External Control” one.
You can Midi Map parameters directly from Max, it has the same type of Midi Map as Ableton, just be sure you have the toolbars active to access the icon (cmd/ctrl+8).
You can also receive Midi from Live or export your patch as a max for live device.
The “Patchbook” as a M4L device is/was just a mixer of vsynth patches actually. Since I haven’t updated it in a while my advice is to make a M4L device out of a Vsynth patch if you want to have it inside Live. Gonna try to make a video of this soon since it has been requested several times.