It would be interesting to define a minimum amount of fees at the event, example:
I have an optional 10 USD entry that costs 30 USD at the same event, it is taxed globally at 8%.
this value 8% over the value of 10USD it does not reach the amount that I have to pay to the payment gateway (1.20 USD) this is imputed in a negative value in the company's range.
in a next version it would be interesting to offer this option in the system admin.
