Canon Speedlite EL-5 Advanced User's Manual page 170

3.
Select <
Press the joystick vertically or horizontally or turn <
<
4.
Select <
Press the joystick vertically or turn <
<
Display then changes to <
Caution
When the role of receiver is registered in a Custom flash mode, that mode cannot
be linked to camera shooting modes.
>.
>, then push the joystick straight in.
>.
> to select
>, then push the joystick straight in.
170
> to select
>.