Switch to map window automatically if no data is made

[jidanni]

Regarding these buttons:

Let's say the user has the Data window selected, and then
runs a query that makes no data, but does make map items.
In this case perhaps automatically switch to the map window,
instead of having the user stare at an empty data screen and
need to manually click.
Maybe have a message "No data output, switching to map instead."

Or maybe never mind.