Hmm. Now I understand. Don’t know if it’s now what you meant but these solutons are wokring for me:
I was thinking that it works in the same way as widget parenting in ScrollBox case but actually no. You have to have two objects. One for data/logic/actor whatever and second for visual representation (widget). I can find a bit analogy in Map variable type here. (If I understood it correctly. :-D) Anyway, Thank you for explanation!