Global add-ons give you the ability to create groups of Product Add-Ons fields and apply them to multiple products in one go. You still create fields in exactly the same way so, if you haven’t already done so, please read this article on creating your first field.
Creating global add-ons
To create a new global group, go to Product Add-Ons > Global Add-Ons.

Click ‘Add New Global Group’ to create a new group of Product Add Ons fields.

Rules
You need to define a rule that will determine when to display the group of Product Add-Ons fields. You can select from the following options:
- Display on all products
- Display for a list of specified products
- Display if the product belongs to a list of specified categories
Creating fields
You create groups and fields in exactly the same way that you do for individual products.