Store Locator Plugin Guide
How to Change the Active Marker Icon?
The active marker is applied when you click on a marker icon, this makes the selected marker the active marker. Furthermore, the active marker image is used instead of the default marker. To assign the active marker status, change the name of the desired marker to "Active" in the "Manage Markers" section, as shown in the screenshot below.
In case you don't have this marker icon, you can create a new marker with the marker name "active". This is done by clicking on "+ NEW MARKER".
How to disable the active marker feature?
To disable the active marker feature, it can be done by using the shortcode shown below.