Document Creators can add optional items to the Product List
Toggle and make the quantity editable for the signer, and set minimum and maximum selection limits
Make the item optional for the signer and toggle it.
The Product List gets assigned to the primary recipient by default.
Total Amount gets updated based on items in selected stages only.
Add a Product List
Add a new product
From the Edit Quantity Toggle, enable quantity editing
Make a product selectable or unselectable from the Optional Item Toggle