Another newbie question: When I add a page to my navbar in a subposition (I mean a page that is shown when I click in a dropdown button from a navbar button) I do so in the Navbar propeties menu , by clicking on the+ button and that works fine. But in the page and layer gallery this same page still seems to be ordered in the same line (under) as the other main (Parent?) pages. I find this confusing. Is there a way to see visually the stucture of my pages? Like a tree structure?