I would like to use Appointment+ as a booking system for

I would like to use Appointment+ as a booking system for a bed&breakfast (being booked for 24 hours min.). Unfortunately, the current timebase which is calculated in minutes can only booked 19 hours maximum.

Secondly, another issue is that when the user select a date from the calendar to book, the 'popup' timetables is therefore not relevant and ideally should be modified accordingly.

Any advise how to achieve this?