My desire is to have trailers for just my existing library of movies. I have this working vial web browser and Android phone. The trailer option button appears .right next to the play button. It is a wonderful feature! The Roku does not display this button. I see that I must have local setup of the trailer option for the Roku to work. Does this mean I will have to download the actual video file (trailer) and store it locally? If so, why? Thanks in advance, Jack