Trial Class Free PER Student

I often have families with more than one dancer ask to take a trial class. For example I had an entire family of 3 girls who were all looking to switch studios - and they each want a trial class. I'd like to have the option for Trial Classes to be per student and not per family.

Doesn't seem right to only grant 1 free trial per family.

My dance studio I own just for adults, both mindbody, wellnessliving etc all allow discounts/first class free/free trial etc all to be per student and it keeps it really nice and clean and straight forward. :)