How to cluster my markers?Editing my maps - February 6, 2015
Your map includes so many markers that it looks cluttered and hard to read? Marker clustering is the solution you need.
In the Edit Map menu, select Clustering options: you'll then have the possibility to configure and enable marker clustering. The clustering rate, the minimum markers required to generate a cluster and the maximum zoom level above which clustering should be disabled.
AutoDetect function is also possible. It’s based on your current zoom and marker count.
Note: Clustering is forced when over 250 markers are displayed in the visible map section.