If you have multiple locations that require the same HMI, you can export one and use it as a template to save time.
1) Click the wrench found in the corner, then click "export" and save the file.
2) Go to the location you need to add the hmi to, browse the file that should save in your downloads, and click "upload."
3) Reassign parameters to the new location.
4) Click "save widget" and "update dashboard" if you are in edit mode.