There already is a "collapse" button if you bring up the menu top right (maybe its too subtle?). Default browser zoom out (Ctrl -) should also work fine, so you can see all shortcuts at once, e.g. on a second monitor or on a beamer, if you're teaching a group of people.
Yep. German here, just realised this is another english word we use completely inapproprately, same as "handy" (mobile phone) and "public viewing" (public screening). Sorry for butchering your language.
There already is a "collapse" button if you bring up the menu top right (maybe its too subtle?). Default browser zoom out (Ctrl -) should also work fine, so you can see all shortcuts at once, e.g. on a second monitor or on a beamer, if you're teaching a group of people.