If i remember correcly, if you wanted to make a link to part of the page, you will have to create an ID, then this ID will show up on the dropdown menu.
I have notice the other day that you don´t need to do this anymore. The dropdown menu will show everything you have on the page.
Hi @Rui_Almeida, you still need to give your sections IDs. You must have set those IDs earlier. Please go check for yourself, if you create a blank page, add several sections. Then add a navbar widget and try to select a section from that list. You will see no entries, until you give the sections IDs.