Hello Karsten
I hope everything is fine .....

I do not want to take advantage of your availability , but
It would be important to implement the " Mirror " node ;
actually working in the resolution Low Poly of
Minimal Surf, it is almost essential to use
the" Mirror" tool for all symmetries , in the repetition
of the basic element in the resolution polyhedron...

The use of simple Rotates becomes enough
heavy...
It is not so easy to locate the rotation axes
Inside the base structure of the polyhedron

I Hope, that without too much effort
You can meet this request-
Thanks for everything and have a nice day
al