2. Locate the product and press the edit icon to the right of it.
3. In the pop-up window, scroll down to MANAGE MODIFIERS.
4. Select desired modifier group(s) from the drop-down menus under MOD GROUP 1-5.
5. Press Save Changes.
Tip: The maximum number of modifier groups that can be applied to a product is 5. If you need to add more modifiers that don't have limits (i.e. NOs), you can add them directly under MANAGE MODIFIERS by pressing + Add New and entering in values.