How to set up a "Flag" like a tab color change
How to have the tab color change when a particular cell has an entry. Or some other "Flag" that the cell has an entry, like the file name gets a "Warning" extension, or some other idea anyone may have. What I'd like exactly is if I select a line of text from a cell that is a pop up window I get a flag of some sort, other than the content of the cell changing. thx.
Numbers 3.2-OTHER