Start [PMC Editing Wiki] CfgMarkers. From BISim Wiki Class names, descriptions and images of standard markers.
The class name (left entries in the list) is what has to be used in the createMarker command. CfgVehicles>>All>>AllVehicles. CfgVehicles>>All>>AllVehicles contains the classes of all editor or script-placeable objects (e.g. units, vehicles, buildings, etc.)
You can dump the contents of your current installation (in a non-hierarchical format) via the -exportCpp startup parameter, VTK Developer's Reference.
VBS2 Model Development.