Parent Input layer
2D Generator - Use the video/image used as Input of it's parent modifierCan be used only inside of the Compo Based and Virtual Screen.
It's function is to display anything that goes inside the Compo Based and Virtual Screen like some kind of reference.
Go check that other part of the documentation for further informations.
2D: Video Input (with Compo Based Modifier).compo.
Animation: Smode Logo Animation.compo.