Availability Date Range for Appointment Booking

I was most excited when Ontraport added the Booking Calendar feature, and was looking forward to moving over from Chili Piper. However, Ontraport currently lacks the ability to set a specific date range for any particular booking page. The Days of Availability and Future Limit features do not meet my requirement.

Use Case: Specific booking page link is given to a certain group of attendees for an event so that we can have a pre-event 1-on-1 call. We need to be able to set specific start and end dates in relation to the event dates so that the attendees can select timeslots within the range. To ensure timeliness of the calls, they are conducted 1 week before the event. Hence, rolling windows of dates do not work for us.