Limiting parameters can be set for scheduling or cancelling a reservation via role preferences:
The time frame before the scheduled flight can be restricted: Aircraft or Instructor must be scheduled X hour(s) in advance
The time frame for cancelling a flight can be restricted: Changes/Cancellations must occur X hour(s) in advance
To do this, navigate to Settings > General > Users
Under Users, navigate into Roles & Permissions and select the role to set with these parameters
On the right-hand side of the role, click edit and navigate to the preferences.
Under preferences, select which activity types you want users with this role to be able to schedule.
Scheduling Options parameters can be set to restrict scheduling notice
Allow users to schedule no more than X day(s) in advance
Aircraft must be scheduled at least X hour(s) in advance
Instructors must be schedule at least X hour(s) in advance
Cancellations parameters can be set to restrict how close to the reservation time the user can cancel the reservation
Changes/Cancellation must occur X hour(s) in advance
Require Cancellation Reason: Yes/No
