Before you can use any SAM content you have to register your custom scenery folder within the plugin. 

  1. Open the Authoring Tool and select the scenery tab. 
  2. Click add, select your scenery from the list and give it a convenient name (proposal: DEVELOPERNAME - ICAO AIRPORTNAME). 
  3. Click save and it will appear in the SAM scenery list. 

Now it is ready to be animated.

Hint: If you woud like your scenery to be hidden in the list because you're done with the configuration manually open the sam.xml file in your custom scenery folder and set locked="true".