Ducati MONSTER 821 Owner's Manual page 109

Press buttons (1) and (2) to highlight the customisable
parameters one by one: in particular, use button (1) to
highlight the following item and button (2) to highlight
the previous item.
After highlighting the required parameter, press
button (4) to open the corresponding menu page.
If function is not available or temporarily disabled, the
menu page can not be opened.
To quit the Setting Menu, you shall highlight "EXIT"
and press CONFIRM MENU button.
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