The way that is easyest is to create a device that has the layout and macros you want for the device overview page, then take and "Move" that device to the top of the tree. NeoSync works for this as well. Just remember to save a copy of the ncf first, because after you move the tree, you can't open the ncf up again to edit, as you'll lose the bottom device(I think, might be the top device)

-steve