Option for more than one visit deduction for prepaid packages appointment invoice processing

Currently for Prepaid packages 1 appointment slot allows only one visit deduction. Patient may have more than one services done and option for more than one visit deduction will be handy to allow all services processed under the same invoice processing while having Prepaid package visits deduction as we want. My team currently have to create more than one appointment slot in order to be able to deduct more than one visit from the patient's prepaid package.