Cleaning fees per night AND collected by Booking.com. Possible?

Is there a way to have cleaning fees setup as fixed amount on a per stay basis (as opposed to % of rate, or nightly fee) and collected by Booking.com? There may be an obvious way to do it, but cannot figure this out. 


No it is not possible and it will need to be collected by you (similar to any deposit).

Also the cleaning fee is not optional.