void Populate ( [UMovieSceneTrack](API\Runtime\MovieScene\UMovieSceneTrack) * InTrack, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [ISequencerSection](API\Editor\Sequencer\ISequencerSection) > InSection, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IKeyArea](API\Editor\Sequencer\IKeyArea) > InKeyArea )