Canon SPEEDLITE EL-1 Advanced User's Manual page 197

3.
Select an item to set.
Push the joystick to the left or right or turn <
(number) to set.
4.
Change the setting.
Push the joystick vertically.
Push the joystick up or down or turn <
setting, then push the joystick vertically.
> to select the desired
197
> to select the item