I think you can do this by using: <layout> <filename>something.desktop</filename> <filename>somethingelse.desktop</filename> </layout> at least that works in the main hildon.menu for apps, can't get it to work for directories
also l added a "More" directory and moved the </OnlyUnallocated> statement there. (all new apps then go there instead of the main menu, like the pre PR1.2 menu. Then I added nodisplay=true to my more.directory file. I won't see new apps listed until I add them to a folder, but I find it much harder to trigger the submenu bug. Perhaps it gets caught scanning/re-scanning for unallocated apps? That was one of the differences between the stock hildon.menu and the new hildon.menu (either ApMeFo or by hand).