Currently, a VS LS project has a property sheet that allows you to publish the application directly to Azure / IIS. The settings (user name & passwords, connectionstrings, ...) are stored per project.

It would be a nice addition if we could save multiple sets of these settings per project. That way, I could set up a:
* development environment (IIS on local LAN, super admin user for sql user)
* QA environment (another IIS on local lan, but with restricted user)
* Acceptation environment (another IIS but on LAN of the customer)
* Production environment (Azure - the real deal)

The publish button would simply allow me to select my "stored settings" of choice, and publish to different environments / configurations.