Appears to work well. I think it might be adaptive to some extent in the same way that the Dash is for program names. For instance, typing 'new window' at first

Appears to work well. I think it might be adaptive to some extent in the same way that the Dash is for program names. For instance, typing 'new window' at first produced a list of odd commands, but then after several invocations, the File -> New Window option was listed first. Trivial example obviously. The activation key is 'alt' at present and appears to be hard wired.