Right now you have to click on finance, then click on the pending payment, then click on details (wait for the window to open), then click on edit payment details, then enter value and change to “paid” on dropdwon. That’s 7 click to confirm just one payment.
With lots of bookings per day, that’s too much effort.
On the Finance overview it should have a button per booking - “Mark outstanding payment as fully paid”. Only one click and it’s done.