Ah yes. Perhaps the idea for aliases would help you. You can throw your vote in for that here: Aliases for note names
But in the meantime, what problem are you trying to solve here? Where are you sorting this stuff? In your File explorer panel?
There is also the idea of MOCs (Maps of Content), where you could create a note that is your own custom index. Instead of relying on numbered names to force a view in your files.
My Custom Index Page
030 [[Collectible Spoons]]
040 [[War Strategy]]
050 [[Books]]
060 [[Finances]]