You can add a fixed or percentage-based fee to any option in your field group. Here’s how to set it up:
In your Shopify admin, open Magical Form Fields.
Click Create field group or choose an existing group to edit.
Add or edit a multiple choice, checkbox, or dropdown field.
Add or edit one of the options in that field.
Click the Add paid field button (next to the trash can icon).
In the dropdown, select either Fixed amount or Percentage.
Enter the amount or percentage you want to charge.
Click Apply changes.
Click Save.
Your field will now include a paid option, either as a fixed amount or as a percentage of the product price.
If you’d like to see a walkthrough, you can watch the quick video below: