For every option set, you can configure different settings. Let’s analyze them together.
Checkbox
Using the Selection type option, you can choose Single if you want your users to select only ONE of the available options or Multiple if you want them to select MULTIPLE options
Example: you let your users select multiple pizza toppings from a list of checkboxes.
Input text
Using the Selection type for this add-on, you can choose Single if you want your users to fill only ONE of the available fields or Multiple if you want them to fill MULTIPLE fields
Select
In the Options configuration tab of this add-on, you can enable Force user to select an option to force users to select an option before proceeding with the purchase.