Monitor buttons are particularly awesome. Often you can't even see what you're pressing because it's behind the bezel or just an unmarked capsense location, and then whether it's up, down, increase, decrease, forward, back, reset, etc. is all different for each page of settings.
Bonus points: turn the monitor to portrait mode and do it sideways.
Both monitors on my desk have a single button on the back side of the bottom right corner. The button can be pressed or pushed in each of the four cardinal directions (left, up, right, bottom). It's actually really nice. Since it's only one physical button, there's never any guessing which button you're on. And once you know the menu structure, common tasks can be done completely blind. (For example, I know that switching between input sources is press-left-press. I can do that without even looking at the screen.)
What model?
Like, I would naively assume that the arrows would move your selection up, down, left, right, and one of the extra buttons would be "select/confirm" and the other would be "escape". But no, that would be too easy. Depending on exact position in the menu, sometimes the right arrow, sometimes the first extra button, and sometimes the second extra button selects the highlighted thing. Sometimes up and down arrows increase the selected thing (e.g. volume, brightness) and you need to press one of the extra buttons to stop doing it. Sometimes one of those extra buttons acts as a hotkey that will switch you to a completely different menu, so it will take five minutes to navigate back.
Then sometimes a confirmation windows opens, with two buttons "yes" and "no", one of them is pink and another is light blue, if you press any of the four arrows, the colors switch, and you are free to make your guess whether pressing the extra button will confirm the pink option, confirm the light blue option, take you to a completely different place, or turn off the menu.