OSD Equivalents for Common Actions shows how to perform common actions used to go to windows, select items, and commit changes in the OSD.
Tab to the OK button and press the Enter key on your keyboard. Go to a specific window, as in: Go to Configure>Users and Groups.” Select the first option from the Main menu. On the next window that comes up select the next option from that menu. Do this until you get to the last option in the menu path.