<a href="https://wiki.roll20.net/Sheet_Worker_Scripts#change:.3Cattribute_name.3E" rel="nofollow">https://wiki.roll20.net/Sheet_Worker_Scripts#change:.3Cattribute_name.3E</a> I'm using a version of the Ammo tracker script to change the values of a total ammo pool and the value in a magazine. I wrote a sheet worker that ran some actions depending on when the ammo values changed. However, macros and the API doesn't seem to trigger the change event. Wondering if there is a workaround otherwise, I'll probably just try to implement it within the API.