Appointments+ and MarketPress manual payment question

Hello, sorry for asking so many questions lately

I have appointments+ set up with marketpress, and I am using two payment gateways:stripe and manual payment. Stripe works fine, when they pay the appointment gets accepted and everything is fine.

My question is with the manual payment gateway. Right now whenever I checkout using it the appointment defaults to pending. Since I want the people to pay at the time of the appointment, I want it to be confirmed instead.

Is there any way at all to do this?

Thank you.