These actions can be used on any system. If you have a one- or two-button mouse, your X server should provide other methods for simulating middle and right button clicks; see the documentation for your X server for details.
To move the pointer left or right, use and (or and on the numeric keypad). To simulate a dragging action, press and hold , , or , use or to move the pointer to the desired location, then drop the selected annotation by releasing all keys.