Add functionality to make notes in Media Gallery

I am a student that frequently uses the Media Gallery where recorded lectures are posted. I would like to have the functionality to make personal notes during playback of lectures with clickable time...

Add information in Meda Gallery about viewing history

I am a student that frequently uses the Media Gallery where recorded lectures are posted. I would like to know wheter I have previously played the recording before or not. Additonally, if I have be...