title: SQl Developer Single Query result tab please
body: <p>In the free application SQL-Developer (provided by Oracle), I tried searching around for this but couldn't immediately find a solution. I find the opening of multiple SQL query result window/tabs mildly annoying. I'm sure there are very useful cases for this feature, but my question is:
  Can we turn the multiple query result windows to just one (Toad style). If there's a shortcut key for this, that would be super awesome.</p>