It’s accessed in Z-suite software, NOT in the firmware. The original post is incorrect. Just download the latest Z-suite 1.10 and you’re good to go.
Now when you’re in the print menu, select Advanced and a new option appears to choose Zortrax Materials or External Materials. When you choose External Materials you are now able to modify several new printing parameters including temps, speeds, retraction, top/bottom fill, flow rate, etc.
This is huge! Way to go Zortrax, 2 thumbs up!
Now just let us disable raft please