If I wish to look through a long documentation page (e.g., that for Integrate or Plot), I find it helpful to first expand all the cells. I can then search for what I seek with either a visual scan or a word search. However, expanding all the cells manually is tedious—I have to individually click on each of the separate down-arrows, sub-down-arrows, and sub-sub-down-arrows (the page for Plot has a total of 50 of these!).
Is there a way to do this complete (i.e., recursive) expansion with a single command? On a Mac, in a notebook, you can highlight all the cells with Cmd+A and then toggle back and forth between open and closed with Cmd+'. But this doesn't work in the help docs.