Help with a "counter" Feature Fantasy Grounds Unity

[oxymoronking]

Hello!
In short, I'm trying to add an ability in 5e that has a "counter" effect, similar to sorcery points or barbarian rages. I've been looking into the ruleset's lua and xml files for hours and, although I understand them, I feel like I'm just not finding the specific files I need for this. I know this sort of thing has been done before, but I'm trying to build the feature into an extension I already had already made for some simpler stuff.
Thank you so much!

[superteddy57]

I'm not sure if this might help, but you can add an action tab entry as a power and have it set to a number of uses. So this tracks the max amount and when it's used it will apply a tick mark till all of the spaces are full and need to be reset. Is this something akin to what you are looking for?