FlightAware XML 3 how to getting data of all connections from specified airport


I would like to use our API FlightAware XML 3, especially plan Silver or Gold. I didn’t find instructions in docs, how to get data about all commercial connections from El Prat (BCN) Airport, Barcelona and get in response flight numbers, Airlines for these connections?
Is it only option to use “AirlineFlightSchedules”?
In this case, only 15 results will be returned or as it defined in Gold plan 150?

One more questions concerning the difference between Gold and Platinum plan in data. According to Pricing, the difference is in AIRPORT DATA. What is included in this airport data compare with the gold plan?