Switch I3 (ID=20745)
The Yellow Toggle Switch
at the square marked
I3
reversez:
the Two-Way Arrowz
in square
J9
.
the Two-Way Arrowz
in square
K8
.
the Two-Way Arrowz
in square
L7
.
the Two-Way Arrowz
in square
M6
.
the Two-Way Arrowz
in square
N5
.
the Two-Way Arrowz 
in square J9.
the Two-Way Arrowz 
in square K8. the Two-Way Arrowz in square L7. the Two-Way Arrowz in square M6. the Two-Way Arrowz in square N5.
at the square marked I3 reversez: