Custom Action

Custom Actions can only be use if you have a simConnect client that excepts Payload Strings that can be read by your program.

I would recomend Jim Keir’s Mission Editor for FSX if you want to use custom action. He has payload Strings that can connect to the simconnect SimVars...

IF : Test any SimVar SET : Set any writeable SimVar DEBUG : Switch the extension’s debug messages on or off PROFILE : Set an internal variable SAVEONFAIL : Save the profile even if the mission fails FUELLEAK : Start or stop a controlled fuel leak MESSAGE : Display a small text message on screen FXTRACK : Attach a visual effect to the player or an AI METAR : Set local or global weather WXSTATION : Create a new weather station EVENT : Send a simulator event PROFILENAME : Set the name of the file to store the mission profile in WPT : Set dynamic waypoints relative to the player or an AI SIMRATE : Set the simulation speed