Switch L6 (ID=23058)
The Yellow Toggle Switch
at the square marked
L6
reversez:
the Two-Way Arrowz
in square
G4
.
the Two-Way Arrowz
in square
I2
.
the Two-Way Arrowz
in square
J7
.
the Two-Way Arrowz
in square
L5
.
the Two-Way Arrowz 
in square G4. the Two-Way Arrowz in square I2. the Two-Way Arrowz in square J7. the Two-Way Arrowz in square L5.
at the square marked L6 reversez: