You can Insert a YouTube video into your eMag either in the Wizard by going to Media and Contents tab-> Quick Features or in Toolbox using the Quick Features window. You can also use the Tools panel and click Video Player button.
In case you choose to insert YouTube video from Quick Features, first of all you need to click on the page (if you want your video to be placed there) or on the back/foreground layer. (Note, working areas can be selected in the Work Area window.) When video is placed, a new window will pop up asking you to insert YouTube video ID which is an 11-character ID and can be found in the URL of all YouTube videos and is located after the "v=" in the URL (e.g. http://www.youtube.com/watch?v=XXXXXXXXXXX)
If you are inserting YouTube video from Tools panel, then you need to go to video Properties window and select YouTube video from Video src type dropdown menu. YouTube ID box will be activated and again you just need to paste YouTube video ID.
Flash and mobile eMags also support YouTube videos played in a window. In order to have YouTube videos played there, you need to place a shape, image, button, etc on one of the layers in a Toolbox, and set it an action to open YouTube videos. All you need to do is to go to media object Properties window-> Actions, e.g. Mouse click. Event Properties window will pop up, so go to Media-> Open Video in Window and select YouTube video from Video src type dropdown menu. YouTube ID box will be activated and again you just need to paste YouTube video ID.