How can i create multiple collapsable purchase order sections?

I have quite a bit of options for my order form that i'd like to categorize instead of having everything we offer on one single list. How can I do this? Would an iframe or something like that work?

If you want to put the categories of your order form under Form Collapses, you would need to set up the products through Native fields such as the Dropdown field. Then you will need to perform calculations to get the total:

https://www.jotform.com/help/259-How-to-Perform-Form-Calculation-Using-a-Widget

Another option would be to apply the workaround shown on this guide: https://www.jotform.com/help/178-How-to-Have-Sub-Category-or-Sub-Labels-on-an-Order-Form

Let us know if you need more help.