The first time you launch Environments, you will see a dialog that will ask you if you want to create a new environment:

By default, Environments creates a Root Development Environments Folder to store each of your Environments at the following location:

If you would like to change the Root Development Environments Folder to a new location, click No and then modify the setting on the “System Settings” panel

If you want to use the default development image path defined above, click Yes. The next panel you see is the “Create New Environment” panel.