Canon SPEEDLITE EL-1 Advanced User's Manual page 198

: Personal Functions
1.
Press the <
2.
Display the Personal Functions screen.
Select <
custom functions, then push the joystick vertically.
3.
Set the function.
Set the Personal Functions in the same way as steps 3 and 4 for the
Custom Functions.
> button.
> by following the same procedure as Step 2 of the
198