Add an extra table mapping id to gui_order, then just write an easy query/report (or edit the one you already have) to give you a view that's ordered by gui_order first. Not that hard, you just need to make the semantics of what you're doing explicit. This is the inherent tradeoff between raw editing on a spreadsheet (quick and dirty, very error prone) and working on something that has real structure to it, reflecting some underlying semantics.