Counting passed tags? (Harlowe online 2.0?)

Hi,
I am looking to count amount of times the person passed through a passage with a certain tag in it throughout the whole story and adds +1 if passed through.

If I pass through a tag A once, it should display: You've been in A 1 time
If I pass through it twice: You've been in A 2 times

I've tried to make it work with passage history tags contains:
(if: ( (passage: (history:)'s last)'s tags contains "A") )[You've been in A once]
(else:)[No A passages]

But have no idea how to make it work for multiple passages to add +1... Can anyone help me move forward with this?

Thanks!