Switch N4 (ID=24588)
The Yellow Toggle Switch
at the square marked
N4
reversez:
the Two-Way Arrowz
in square
H5
.
the Two-Way Arrowz
in square
J3
.
the Two-Way Arrowz
in square
L1
.
the Two-Way Arrowz
in square
N3
.
the Two-Way Arrowz 
in square H5. the Two-Way Arrowz in square J3. the Two-Way Arrowz in square L1.
the Two-Way Arrowz 
in square N3.
at the square marked N4 reversez: