Build a Salesforce Maps Marker Layer with Related Lists

Check out the video below for steps to add a related list to a Maps Marker Layer in Salesforce Maps
 

Steps:

1. Open the Salesforce Maps Marker Layer editor by creating a new marker layer or editing an existing marker layer.
2. Select the Marker Pop-ups tab and click on the Related tab.
3. Click on +Add Related Object.
4. Choose a Related object from the drop-down menu.
5. Fields to Display: Click on +Add Field to add fields from the related object in your related tab.
6. Choose the Order Records By field and Limit Records To and display the sort order for your related list.
7. Add a Condition to filter only records you want to see in your related list.
8. You can also add another related by clicking on +Add Related Object and repeating steps 4-7.
9. Select Save and Plot to save your changes and display the marker layer on the map.

Note: Activities / Child records directly linked to the Base Object will be displayed with Related Lists.