Options

Open Options from the component toolbar or System > Global Configuration > Store Locator Pro.

Basic

• Units (Miles / Kilometers)
• Show Locations on Load (Yes / No / Featured)
• Marker Icon Preference (Tags or Categories)

Map

• Google Maps API Key (required)
• Directions, zoom wheel, terrain, default map type
• Cluster method: Google MarkerCluster, Spiderfier, or None
• Map height, hide list on load, auto or manual zoom, center lat / lon

Search

• Enable search, featured filter, radius filter, results list
• Google Suggest, radius list, default radius, max results
• Country search bias

Also review Permissions and any uninstall / keep-data setting before removing the extension.