List item minimum and maximums are set at the main list level. Both settings are optional and can either be configured individually or simultaneously.
When a field is required, users must enter at least one item before they can proceed. Due to this, we generally recommend specifying a minimum only if you require a user to enter two or more items.
Set input limits on list fields
Here are the options that you can add to your List fields' configuration file:
"options": {
"max": 5,
"min": 2
},