How to trigger action sequence when a wizard tab renders

@Skuidward_Tentacles that’s the part I can’t figure out - how to set that up. To add a bit of complexity, the page rendered is used elsewhere, too, and the action I want to run within this flow would not run when the page is rendered from the base pages.

update - actually, that may not be a concern, as I can have the action only run if a particular piece of data shown on the screen is not updated. I still don’t understand, though, how to set up this - “add the on page render action sequence to the included page”