Adding change event to dynamically created option buttons on userform

Good morning forum

I have a userform that is populated dynamically based on variable data downloaded from a database. I want to add a change event to the option buttons, to modify the total quantity. The total quantity would increase by the quantity listed every time that "Shipped" was selected, or be reduced when "Not shipped" is clicked. Any suggestions on how to get the change event for the option buttons into this dynamic form? I'm attaching a spreadsheet, with some macro lines disabled to prevent errors in testing, and stop database access.

Thanks for reading