They put those keys on other layers. Like on many keyboards, you have a Fn key which activates a layer that makes the F8 key a play/pause button or w/e. Just put the less used but still necessary keys on another layer.
Or configure certain keys to do something different with a double or triple tap. Double tap lshift = [ Double tap rshift = ], etc.
Or configure certain keys to do something different with a double or triple tap. Double tap lshift = [ Double tap rshift = ], etc.
They are highly configurable.