Using Footer in Harlowe 2

Is there a way, using the footer tag, to give a unique number assignment to every passage?

I have so many passages now my testers and I are having trouble communicating which passage everyone is talking about.

I thought I'd use a footer to give each passage a number but I can't figure out how to give the same number to each passage every time and also increase the number automatically for each passage.

Is there a way to do this?

Thanks!