ok, so I have only 3 unassigned routes, and all 3 will go to 1 aircraft, and that aircraft is ordered. Now i did try to open routes for 1 more aircraft but I can't! I have this message: "Error: You have too many unassigned routes at this airport already and you cannot create more new routes until these routes are scheduled.
Your base is a slot restricted airport and airlines are not allowed to control more slots than the actual operation requires. You must first put the existing slots/routes into use (schedule the aircraft) and you can only create new routes after that.
(this error has been logged for administrational review - the administration monitors airport slot usage at the busy airports and will review each error to prevent slot hogging that is against the rules). Please try again."
What if I wanted to put 4 routes on same aircraft? And to be honest I don't think that this rule apply to all of players!!!