It would help to know the monitor model number ?
There is normally some way of adjusting them, some hide the buttons behind a panel, others tuck them under the front so you can't see them, some use a single button to go into the menu and another to exit, and toggling with them gets to different features etc, I suspect some may be adjusted via software, but couldn't swear to it, but it wouldn't surprise me, but if people know your model number they may be able to offer more specific advice, hope this helps a bit.
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