Availability by day

Hello Lee.

I bought the Thimpress theme that includes WP Hotel Booking.

I would like to ask how to feed room availability by date.
This is because i can not control availability of each room for individual dates and
i can only feed a general availability number inside each room.

It could work like “Pricing Plans” and set availability number for each date for each room. Please let me know how this can be done even if it requires some light or heavy customization. Please contact me at: a.angelakopoulos@gmail.com
I really look forward to your answer.

Thank you in advance.