I don't know how else to word this question. This is literally it. HOW do I stair step?
I have never heard of such an option, until now, and need a visual guide with screenshots, otherwise I'm lost.
I have diagonal text sitting on a path, but I just don't know how to stair step it.
There is a related question: Typesetting on a diagonal path. But the solution there is not available in Photoshop.
You can still do it in Photoshop, it takes a little more effort than on Illustrator or Indesign. It will not work with just diagonal text.
Activate the grid (Show > Grid) and (View > Snap to Grid) to make the following steps easier.
The image below shows my attempt, I turned off the grid so you can see the Path. to create more text just duplicate the first one and edit with the Text (T) tool.