Steps to Reproduce:
Currently everytime you create a new query tab no connection will be established. You have to do this yourself buy using either the Run or Connect button. If you want a connection to be established whenever you create a new tab you need to wait for #6 to be solved (which is on the current agenda/milestone).
Another workaround is to right-click a database or server and select New Query. This creates a new tab and connects to the server.
Exactly that, but it's a bug.
If I have a database selecting the expected behavior is the same as the "microsoft sql server manager studio"
I'm going to close this as a duplicate of #6 to keep the discussion consolidated to a single issue. We don't currently have the concept of a "current connection" to use for global commands like Ctrl-N. For example, if a user is currently interacting with the dashboard with a particular database, but happens to have the cursor positioned on a particular Object Explorer node, then runs Ctrl-N should we use the connection context from OE or the dashboard? In any case, we're looking at the various use cases here and will fix this in an upcoming release.