AIO's arent analog so there is no adjustment outside of windows or the OSD screen app. 6 is OSD BUTTONS [IMAGE] [URL]   [URL] This package contains the Dell On-Screen Display application. On-Screen Display (OSD) allows you to control the brightness bar, change the input source, and turn the screen on or off through the OSD button. [URL]  
How do I adjust monitor height on Dell OptiPlex 9030?
How do I adjust monitor height on Dell Optiplex 9030?