I removed my "canvas = timeline" errors; I hope this is now correct.
Clips in \CGG{} are those that are created in the Viewer window and can be brought into the timeline, where they become edits, or brought into the Resources window, inside the \texttt{Clips folder},
I think you can create clips even from timeline? This little 'i' button (and apparently clip done this way can contain empty space/silence, or even multiple timeline edits)
Rereading the sections on temporary, camera, projector, viewport,
track and output size (all things I rewrote), they seem poorly and
confusingly developed. Does anyone know how to correct them, improve
them, and make them more accurate/informative?
My apologize.