Can't track current connection in visual studio

I create a database project in visual studio, when I open a sql script file, there is a T-SQL Editor toolbar that could connect to a server, but sql prompt still in disconnect mode, the only thing I could do is click sql prompt menu, click connect to server, then input connect information manually.

Then I click "New query" in T-SQL editor toolbar, sql prompt is still disconnect for the new file, so I must connect mannually again...

If it's difficult to track the connection, can you add a option that could set a default connection to sql prompt, or remember the last connection?

This is really inconvenient, I hope it be solved in next version. thank you~