This is something I've wanted for a long time, but I always intended to just submit a patch since it would be trivial, but maybe other people have an opinion about it too: I've always wanted a button to collapse or maybe toggle all expanded branches. Once a library gets large, it's easier to navigate when things are closed by default. I used to have to re-close giant things I didn't care about, like the open gl modules, all the time. And if I hit the back button to go back to the toc, it's forgotten which branches I had closed. Of course, since the stdlib has been broken up a lot this is less of a problem than it used to be, but as my own project gets bigger it's since become a problem there. In fact, without an easy way of closing everything, the fact that sub-packages are collapsable at all doesn't seem very useful, unless you use frame view and keep the page open for a long time.