Help with crit detection to apply a modifier

I will start this with I know nothing of javascript. I have been developing a system, most of the hassle I have completed creating a custom sheet for it. But I need to be able to handle the critical hit system that it uses. Because it rolls multiple dice, that can each gain a crit success or fail it can be a little awkward doing the math quickly for some. So what I need to do, is in the attacks is have each cs to add the modifier to the damage but each cf to subtract it from the damage. &{template:URPGS_Attack}{{name=@{AtkNm2}}}{{roll=[[@{Atk2}]]}}{{roll2=[[@{Dmg2}]]}} and the modifier in question is. @{LucMod}

Didnt we discuss this in another thread? You can't count multiple crit successes in the way you want without using an API script, which means the sheet wont be as useful to free users. Edit: oops, didnt realise we were in the API forum, lol. Yes, it's doable. There's multiple ways. You might be able to use the Power Card API to achieve this without having to create your own script. There's a Power Cards thread, I'd ask there first, and come back here if you need an actual script written.