5e OGL Companion referencing All Slots Expended

I'm currently running a game using the 5e ogl & 5e ogl companion script. Everything works as it should, but I have created custom character abilities for certain commonly used spells and was wondering if there was a way to have these use the portion of the companion script that denies the character from casting if all slots are expended and post the ALL SLOTS EXPENDED template to chat?

Sorry, selfish question: Where is this companion script?

Sesserdrix said: Sorry, selfish question: Where is this companion script? It's in the Roll20 One-Click API Script Library; 5th Edition OGL by Roll20 Companion.

It would likely require pulling down the JavaScript and making the changes for it to manually read those custom attributes. How you would go about that, I cannot say. I'm no programmer.