The ability to easily and accurately add location markers to XP360 panoramas is one of the primary functions of the API.
This section covers functions related to working with markers. A complete list of the default marker types can be found here. For information about using your own marker icons, please visit this section.
Definitions:
PanoMarker SphereMarker - The green sphere icon that is used represent nearby panossphere
CustomMarker - Any map icon that used to represent a point on the map, whether it’s from out default library or user specified.
...