To start working with your Store first of all you have to select or create your Store Configuration (1). If you have one you can Load your configuration to Store Manager or simply select one from the drop-down.
Also Store Manager allows you to make the following actions with your Configuration (s):
2. Enter a new configuration name; It is a good idea to use your store name or some other informative name to cope with your databases easily.
3. Click 'OK' to save this entry, or click cancel to discard this entry.
Press "Actions" button and select "Rename Configuration" from the drop-down.
Change your Configuration name in the Edit configuration window.
Click 'OK' to save this entry, or click cancel to discard this entry.