The add-in is available in the Office Store. See https://store.office.com/officemap-info-WA104380171.aspx
To configure the app on the site, simply go to the settings page of the app and enter the bing map key for the app (add-in) web. Then, fill the meta data columns that are related for the offices in the list Map Items. After that select the view “Mapview” to Show the location on the map.
The Add-In have the following features inside
• Show detail info in Popup Dialog from Title link
• Show detail info in Popup Dialog from Pushpin link
• Filter Locations
• Search locations
Note:
Default.aspx show's only the default (Mapview) view. If you want some other columns to show on the view you must modify the current view and not create a new custom view.