1859m,2009m,2009v, 2009f, 2159m,2159v,2309m,2309v, 2509m, 2709m LCD Monitor User Guide

Adjusting the Swivel
The HP LCD monitor allows a usable range of motion with the swivel feature.
Keyboard Parking
If you need more space on your desktop, place the keyboard under the monitor when not in use.
CAUTION: To avoid breakage or other damage, avoid applying pressure to the LCD screen while swiveling it or
changing the tilt.