I watch youtube tutorials and when the presenter types part of a screen name the import is automatically created. In one video the presenter enters part of a screen name and a list appears with the required screen at the top. He presses tab and the import is generated. When I do it the list appears I press tab and nothing happens. I have checked for "auto import" in the extension marketplace but am unable to locate one for Dart. Every video I watch it works. It is such a silly little thing but it is driving me crazy, which is not good for my blood pressure. :) Somebody please help me because I have tried searching the net and youtube.