In a pinch, A:M can be used to assemble several stereoscopic shots into one video.   StereoscopicEditing_h500.mov     As mentioned in the video, there are some YouTube settings:   Under "Basic Info" in the search term tags section put yt3D:aspect=w:h, where w:h is the width to height frame aspect ratio.       Under " Advanced Settings" set "3D video" to "This video is already 3D" and "Side by side: Right video on the left side"