I just I thought I'd share how to set up a 2nd material for support since it took me quite a while to figure out. I have model to be printed and want to generate all support using the 2nd nozzle and possible a different material.
You cannot go via the Dual extrusion wizard since that requires 2 STLs and I have only one.
Setting up 2 separate processes also does not work. The software then trips up over the fact that you have 2 processes for a single model. It is also impossible to set up a process to just generate support (blue) it also prints the model to be supported, effectively printing the model twice (green+blue)
It took me a while to figure out that in order to print the model with one nozzle and the support with the other, you have to set up a process for
both extruders and specify the nozzle to print the design under
Layer - left extruder in my case, while the right one is selected for
Support and Additions.
Voila. I hope that saves you some time.