Repeating Resource Boxes on 5e Character Sheet

I want to use macros/APIs to edit values in the boxes used for ammunition/class abilities, particularly so that I can deduct rations when long rest is used or potions when a powercard for potions of healing is used. The top two are called class_resource and other_resource and I have successfully managed to alter them but when you add another below row each additional row has the same name as the one above and I can't seem to edit them with SetChatAttr. Does anyone know how I can do this? Many thanks in Advance.

All the rows after the first one are part of a separate, repeating section. You can grab the first row with these: @{selected|repeating_resource_$0_resource_left} @{selected|repeating_resource_$0_resource_left_name} @{selected|repeating_resource_$0_resource_right} @{selected|repeating_resource_$0_resource_right_name} and increase the $0 index for each new row.

I would just like to add that programming any API for the D&D 5th Edition by Roll20 Sheet is a pain in the neck because of this arrangement. One, single repeating field would be sooooo much easier to manage.

You'd also expect a By Roll20 sheet (especially the flagship D&D one) to know that you can split a repeating section into two columns, and so shouldnt need this naming approach anyway.

Thank you so much. I'll try these out straightaway :D