That was exactly I searched for the how to…
What I got now is:
one has to first define a new global class, and after that create relatives styling for that class
Question: is it possible (that’s what I tried several times before) to make a virtual class a global class, or an existing relative style a global class, at least as an predefined input for a global class?
The reason I am asking, is, that in some cases one has created a virtual class with some effort, and then one comes to the conclusion, it would be a good Idea to just have that as a global class