ok, this sounds like what i need as i do create an adjustment layer for when i brush out an area when creating a cinemagraph.
i guess i simply have 2 adjustment layers (next to each other) --- on the new adjustment layer on frame, i make the selection, make the adjustments, then that's it? it's applied to ALL frame?
Yes- if you put in in the layer panel above the video clip as I have shown then it will be applied to the entire clip
perfect. thanks for your answer.