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Check or uncheck many checkboxes fast: hold Alt (check) or Shift (uncheck) and sweep the mouse. The page scrolls as you go. Taking too much effort to check and uncheck multiple checkboxes in a long list? Multiselect will help you get the job done quicker. Hold down Alt key and hover mouse cursor over the checkboxes to check them. To uncheck, press the Shift key and hover over those checkboxes.
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