To add a new airport, select Airports menu item in INFO 

To start adding – press 

Start entering the information 

The obligatory information should be added

Airport name 

Category

ICAO/IATA – might be left empty 

Coordinates – to see the correct location of the airport on the maps

Time zone – shoud be written without gaps, with slash. Helps system to canculate proper time  and summer/winter time changes. Information can be taken from neighboring airports in the same timezone or from websites

http://www.timezoneconverter.com/

http://www.zeitverschiebung.net/

Airport terminals to be selected in the flight 

After you filled in all necessary fields, press 

if you change the information from this Main information block 

and you want to update the airport in database.