Tasks and agents are gathered together by proximity into clusters as you increase the
altitude of the dispatch map view.
Tasks are gathered into red clusters and agents are gathered into blue clusters. Counters in
each cluster icon indicate the number of agents or tasks rolled up as the perspective
When multiple agents and tasks are in one location, they can be gathered into purple clusters.
This icon is created by a system property called Merge the task and agent markers on
the geolocation maps with a purple marker. This property is found in and is disabled by default.