User guide
8 General interaction  
General interaction
Touchpad and cursor
Use the touchpad to adjust and move objects 
on-screen. The touchpad controls caliper position, 
CPD or Color box position and size, the cursor, and 
more. The arrow keys control much of the same 
functionality as the touchpad.
The cursor appears in the setup pages, the patient 
information form, and patient report. You control 
the cursor through the touchpad. For example, in 
the patient information form, place the cursor over 
the last name field and press the 
SELECT key to 
activate that field. Additionally, you can use the 
cursor to select check boxes and items in lists. 
On-screen controls
The on-screen controls let you make adjustments 
and select settings. The controls available depend 
on context. 
Each control is controlled by the pair of keys below 
it. Depending on the control, the keys function in 
one of four ways:
Cycle Moves through a list of settings continuously. 
The upper key cycles upward. The lower key cycles 
downward. 
Up-Down Moves through a list of settings, 
stopping at the top or bottom. The upper key 
moves upward. The lower key moves downward. 
By default, a beep sounds when you reach either 
end of the range. (See “Audio, Battery setup” 
on page 19.)
On-Off Turns a feature on or off. You can press 
either key. In forms, you can instead select the 
control by using the touchpad and the 
SELECT key.
Action Performs an action. You can press either 
key. Or you can instead select the control by using 
the touchpad and the 
SELECT key. 
Figure 5 On-screen controls (2D imaging shown) 










