We do not have the ability to duplicate a location at the moment. You can, however, export the data you need and import it into a new location.
Exporting/Importing Menu Items
Take note, at the moment, when you do this for menu items, it imports ALL of the settings for that location, not just the menu items.
Both Contact Buttons and Shortcut Buttons (dashboard) are located here:
RELATED HELP DOCS:
Grouping Locations with Google Sheets:
Custom Features per Location and Level:
Connecting to Snapshots with Snapshot ID:
Linking to Menu Items Not Listed: