Adding a Component to Sequencer

Hi, I have same questions. I don’t know how to add property as key frame. Could you please share your idea? Thank you!

Code:

//	UMovieScene* Movie = WidgetAnim->GetMovieScene();
//	FGuid TrackComponent_Guid = Movie->AddPossessable(TEXT("TextTrack"), RootPanel->GetClass()); 
//	UMovieScenePropertyTrack* Track = Movie->AddTrack<UMovieScenePropertyTrack>(TrackComponent_Guid);
//	Track->SetPropertyNameAndPath(TEXT("Render Opacity"), TEXT("Render Opacity"));
//	UMovieSceneFloatSection* FovSection = Cast<UMovieSceneFloatSection>(Track->CreateNewSection());
//	Track->AddSection(*FovSection);