There is "F1 Help" in the bottom bar which lists these options, but not in much detail, so it's probably not enough for someone not experience with the tool. F

There is "F1 Help" in the bottom bar which lists these options, but not in much detail, so it's probably not enough for someone not experience with the tool. For example, I missed that they use capital and non-capital letters: H (shift+h) toggles the threads, but i sat there opening/closing the help screen by pressing just h. Careful reading of the help screen would have prevented that. As none of the same lowercase/capital letters are next to each other, it is easy to miss.