How can I access all the records I have at one location on the map?
By default, hovering over a marker at a location with multiple records will alert you how many are at that location.
Alternatively, you could make it immediately visible with a Same Location Marker:
No matter which you choose, when clicked, you see the names of all the records at that location.
Clicking on a name will bring up their map bubble, just like any other record.
How do I turn on Same Location Markers?
Individual settings can be changed using the Map Settings, located in the upper right hand corner of the map. It is a picklist labelled as Same Location Markers.
Admins, you can set the default for your company in Geopointe Setup, as part of the organization settings. Just be aware that any user can change their personal preferences with the directions shown above.