What machine setup configuration is used for the Phrozen Sonic 4K XL printer? Only the following are available in Add Printer under the Phrozen category:
Shuffle
Shuffle Lite
Shuffle XL
Shuffle 4K
Sonic
Sonic Mini
Transform
People at Ultimate 3D Printing Store were very helpful.
They got hold of Phrozen support in China.
Here is Phrozen's machine profile for Sonic XL 4k (see picture).
It works!