Cannot Add Location from Locations Tab

I have enabled the Locations Add-On, but on the Locations Tab, I do not have the option to add a location (please see image). I am running the latest version of Appointments+ (Version 1.9.4).

I've tried activating the other location-related plug-ins that bind the location, de-activating and activating, etc. but I can't get to a point where I have an option to add a location. Any advice?

Thanks.