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Press the Add Content button and select Web > New > WebView.
This will create a new WebView layer on the canvas and in the layer list. Modify the URL by clicking in the WebView toolbar and typing in a new URL e.g. http://www.youtube.com.
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Find the YouTube session and select it. This will load the session into the workspace.
Next Section: Canvas UI - Viewing YouTube 360 MoviesLaunching Sessions from the Homescreen