Numbers 10.1 (Mojave): How to print spreadsheet with visible row numbers?

I’m sure this is easy, but I can’t find the answer. Using the Numbers app, version 10.1 (Mojave edition), how do I print a spreadsheet and have the Row numbers be visible?

If it’s anywhere it’ll be in the Page Layout settings.

You could add a column and enter
In each cell. That will give you the row number and you can still delete or move rows around.

That’s the funny thing: there is no Page Layout in any of the menus, much less where one would expect it.

On general principals, I still believe there has to be a way to do this.

Your suggestion of adding the row numbers manually is definitely thinking outside of the box and would work as the spreadsheet is mostly finalized.