void AddTrackSlot ( const [TViewModelPtr](API\Editor\SequencerCore\TViewModelPtr)< [IOutlinerExtension](API\Editor\SequencerCore\MVVM\Extensions\IOutlinerExtension) > & InDataModel, const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [STrackLane](API\Editor\SequencerCore\MVVM\Views\STrackLane) > & InSlot )