I have managed to get some of my photoalbums as subfolders in the menu. I did this by creating a link-object and within that create a new folder. I suppose this is the correct way (the documentation lacks information about this as far as I can see).
But when I now want to rearrange the order of the items (subfolders) in the parentfolder that is not doable. It is not possible to drag-n-drop here as it is in the "root-menu", or what?
I have been trying with both the 2.7 and 2.8 trials, and same result.