The Server Explorer is in the upper-left hand corner of the interface, beneath the main menu and above the Maps pane.
Use Server Explorer to control the environment in which you work. You may select 'Studio Engine' or any instance of MapDotNet UX Web Services from the dropdown. Click "Add" to add a new MapDotNet UX Web Services instance.
Connecting to Studio Engine
MapDotNet UX Studio connects to Engine by default. If you have connected to a server and would like to revert to working locally, simply select 'Studio Engine' from the Server Explorer dropdown.
Connecting to the MapDotNet UX Web Services
MapDotNet UX Studio connects to 'Studio Engine' by default. You can switch to the local instance of the MapDotNet UX Web Services (installed by default) by clicking the Server Explorer Dropdown.
Removing a Connection To remove a Server Explorer connection, select it and then click Tools, go to Server, and click "Remove Current Connection."