Hi Nuno,
I just released a new version (1.3.0) with the functionality you asked for.
The option to use is EnableDoubleClickToShowAll. It defaults to False (for backwards compatibility).
I also updated the demo to use this double-click behaviour.
FYI: I also added another new option: MinimumFilterSize
This allows you to set the minimum number of characters to type before the autocomplete triggers.
Hope this helps.
If you notice any bugs or have more feedback, let me know.
Best regards,
Steven