Purpose of the Active Domain tab in webpanel?

I’m trying to find out what the purpose of the “Active Domain” tab in the webpanel. It doesn’t seem to do anything except highlight one of the domains on my system. Is this a feature that’s in development?

Your hosting package may allow you to host more than one domain in that package,

Code Monster package allows you to host 15 domains, so in your active domain list, you may have


and you can select just one domain you want to work on.