This is just what I was wanting to add. I often layer material such as different sentences within the same text box, with a white sheet between each layer. I know we can 'close the eye' on each element, and that is wonderful (thank you), but I would like to be able in a stroke to close ALL eyes to the right of the element I am working on (so that I can see the bit of text that I want to edit without it being covered over). I know that there is an eye icon to the far right that would allow them all to be opened again in a single click.
Good point. Maybe number of frames to hide?