Ducati ST4S Owner's Manual page 133

To move the beam down press button (A, fig. 5.1), to Note
move the beam up press button (B, fig. 5.1).
When this function is activated, vehicle ignition is
On the left side of the number, on the display, are the fixed
inhibited.
"guide lines" that indicate whether the actual beam
position is higher or lower than the "0" position (they flash
while beam is being raised/lowered and signals if it is
moving up or down).
Turn the key to OFF to exit the function.
Every time you quit the function, the selected beam
setting is stored. E
fig. 13.2
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