Thanks Broberto.
I am trying a different display approach with tabs:
The first tab will show a collection filtered in the back-end
The second tab will load the inverse collection (still filtered in the back-end), so another collection for WeWeb.
It seems that I can’t display 2 different collections on two separate tabs:
when I change tabs, the collection list binding stays the same.
Is this related to How Do I Connect Tab Control to a Collection? - #2 by khairul ?