Check out the "submenu.nut" in the modules folder. I think it's what you want. You'll need to setup your layout.nut to call it.
to make it work on my rasberry pi u need to make shure you update AM to the latest so it has the display menu optionafter i did that it did not put the new folder "menu-art" in the root folder...so i just added it there and and all work fine..