Setting an attribute via Sheet Template?

I'm trying to wrap my head around whether or not this is possible. I know the API ChatSetAttr can do this, but frankly, I'm already investing a metric ton of my time and effort into this and I don't feel like $10 a month eternal expense for being able to play a game is justified in regards to a single piece of script...

Hi, Seth . Aside from the API, Sheet Workers are also able to set Attributes on Characters. Roll Templates simply function to style Text Chat output—they cannot affect Characters. I hope this helps!

Ah, allow me to clarify: My system uses the difference between the difficulty of an attempt compared to the overall success of the attempt: e.g: Difficulty = 36 | Skill = 32 Skill + d20 = 32 + 9 = 41 Success = 41 over 36 = 5exp I know roll templates can store rolls within a single context, but I am hoping to utilize that ability to not just display the output of differential (in addition to the Overall Success) but in some way, store that differential in a preexisting attribute wherein a sheet worker checks said attribute for a value other than 0, adds or subtracts accordingly, then resets it to 0. < that last part works already, just trying to cut some of the plug this and plug that as the game has hundreds of skills that level independently of each other.