Receiving Payments through Stripe for Group Therapy Sessions

I facilitate Equine Experiential Group Therapy sessions and would like a way to record payments for these in my Simple Practice system.  Most participants in the groups are referrals from other therapists, so they are not always my clients, and therefore, do not necessarily have profiles in my system.  Would it be best to add a "client" called Equine Group Therapy?

Thanks!

Michelle W. Conkle, LPC-MHSP