Does anyone know how to change what is controlled by the numbered boxes at
the top left corner once Group and Outline has been set up on a spreadsheet?

I've set up a couple different types of groupings in a spreadsheet, and the
quick hide feature is not hiding what I've told it to hide. But I didn't
actually set up the 1, 2 and 3, so i'm not sure if they can be manipulated or
not.

If anybody has any experience with this, I'd greatly appreciate any tips you
may have.

Thanks!