Getting Script to included act number, scene number, and page nume in the header

Scrivener
,
1

I want the compiled PDF of my script to follow the Dramatists Guild’s page numbering format which is:

[act #] - [scene #] - [page #]

So I want my pages numbered in the header like this:

I - 1 - 1
I - 1 - 2
I - 1 - x
I - 2 - 10
I - 2 - 11
I - 2 - x
II - 1 - 20
II - 1 - 21
II - 1 - x
II - 2 - 30
II - 2 - 31
II - 2 - x

I currently have this in header text: <$k> - <$t> - <$p>. But that’s not working.