You can change your store location on a preexisting map by gaining a new HTML code from a third-party provider and updating Map & Contact content on your website.
To change your store location on the map:
While logged in to SMT on your website, navigate to the page that contains the Map & Contact content.
In the Map & Contact box, click Edit.
This displays the Map & Contact Settings in the side panel.
In the Map HTML Snippet field, enter the new HTML code for the new map location.