Two existing questions [1, 2] have asked after a keyboard shortcut for accessing the Unity Dash Preview feature, which is currently only accessible with a right-click, and were marked as duplicates of this great keyboard shortcuts thread . A keyboard shortcut for accessing Dash Previews isn't in that thread. In fact, the word "preview" is not even mentioned.
In the official documentation, no keyboard shortcut is referenced .
There is nothing in the ubuntu-devel-discuss mailing list when I search for the keywords "dash preview" or even "unity preview" .
There is no bug yet filed for a feature request .
What's the next step? How can I help?