Environments Editor - can no longer "create empty"

I just started playing with using Environments in 1.3.1. When I first started looking at this, if I created an environment with the "Empty" button, there was nothing in the various tabs of the Environment Editor -- which is what I expected. But then I tried the other button (Copy Endpoints and Credentials from Project), and yes, it grabbed endpoints and properties from the project.

However, since doing that, I'm unable to create an empty environment when using the "Empty" button. It always grabs the endpoints and properties and populates the tabs.

Any advice here?

Thanks.

SoapUI NG Pro (Ready! API 1.3.1)