I started printing with Gizmodorks PVA filament and it says to NEVER print their filament above 200C because it can cause permanent damage and it causes stringing.
When printing I noticed that there is an limit that they have put on how much you can offset the temperature of a nozzle (+-25C).
Could you make add a setting for advanced mode where you can edit this settings at your own risk?? I am not pleased that I paid orders of magnitude more for a "professional" printer, but have less control than my previous hobby Ultimaker.
-Alonso