Thank you for your reply, Nayeli.
Allow me to simplify my question.
The basic assumption of any booking system is that both seller and buyer needs to know the same information. One offer something sell and one buy it - both needs to be aware of every aspect of the transaction.
I am just wondering, if this session count parameter is part of the member available information (ie. when a member book a class, they immediately see how many sessions left from the total session they purchased in their plan “Remaining Sessions: 4/5”) – why is this parameter - which is available in the system, is not available for the website owner/plan-seller?