One Attack, Two Resource Boxes

I am using the OGL sheets with the companion API and I'm going to be playing a gunslinger. Right now I have a box for the # of rounds in the gun and a box for the # of rounds total. I have been trying to work out a way that both the boxes would be used when I click on the guns attack instead of just one of them. Anyone have any ideas?

Both at once is a little complex. How about using the gun attack to decrement the number of chambered rounds, and then a ChatSetAttr macro that transfers a set number of rounds from total rounds to chambered rounds? Like a reload function. The total number of rounds would be the total of the boxes.

hmmm... potentially I had created something similar: Have a macro (which triggers nested macros and API script I think) that decrements 2 repeating resources in an unequal manner for Short Rest healing. For short rest healing macro is asking how many hit-dices (repeating resource 1) you want to use, and after selection and placing the result in the chat, it decrements amount of hid dices selected ( repeating resource 1)  and healing kit for a single usage (repeating resource 2).  as keithcurtis already pointed at, it is a bit complex and unique for each player character(sheet), and you would have to click on a macro button instead of an attack executed clicking on the OGL sheet.

Heh, I thought I had lost a post when I saw your other thread. It's usually better to report an issue in one thread, to generate the best concentration of attention.

Sorry about that I was a little confused weather this was a API or Sheet problem. Thank you both, I haven't messed around with ChatSetAttr before but I think I will give it a shot.

checked what sort of API script am using:&nbsp;&nbsp; <a href="https://wiki.roll20.net/Script:5th_Edition_OGL_by_Roll20_Companion" rel="nofollow">https://wiki.roll20.net/Script:5th_Edition_OGL_by_Roll20_Companion</a> , basically the same you use, me thinks. it is basically the ammunition handling part.

Yeah that's what I have