Member's of the directory have the option to select and set their location based on the location of the marker in the map on the Contact Details form:

Use the Advanced Setting: 

Disable Drag-able Pins on Member Google Maps

System Variable: disable_drag_drop_member_map

Once the Advanced Setting is enabled, the option to move the pin is gone:

For additional questions or help setting this up, please submit a ticket to [email protected] or create a ticket HERE.