Each of the motion detectors report to a different RF Receiver so they have a different house code.  There are three motion detectors that each have their own timer and all three have a group timer for the rear of the house.  First the events for the motion detectors:

BEGINIF PLC-Button C Is 15/On            ->House Code C, Unit Code 15
Then Text-A T1<-T1 Text, C15
Then Text-A Set <Space>
Then Text-A T1/A<-Stt PLC-Command C
Then Text-A Set Log                      ->Log motion detector activity
If Daylight Is True                      ->If it is light outside
Then Timer, Rear Garage Set 90           ->Set the motion detector timer
Then Timer, Rear Set 90                  ->Set the group timer to control the lights
If Daylight Is False                     ->If it is not light outside
Then Timer, Rear Garage Set 180          ->Set the motion detector timer (note the higher setting)
Then Timer, Rear Set 180                 ->Set the group timer to control the lights
ENDIF
;----------------------------------------------------------------
BEGINIF PLC-Button D Is 11/On            ->House Code D, Unit Code 11
Then Text-A T1<-T1 Text, D11
Then Text-A Set <Space>
Then Text-A T1/A<-Stt PLC-Command D
Then Text-A Set Log/Speak                ->Log and speak motion detector activity
If Daylight Is True                      ->If it is light outside
Then Timer, Deck, up Set 90              ->Set the motion detector timer
Then Timer, Rear Set 90                  ->Set the group timer to control the lights
BEGINIF Daylight Is False                ->If it is not light outside
Then Timer, Deck, up Set 180             ->Set the motion detector timer (note the higher setting)
Then Timer, Rear Set 180                 ->Set the group timer to control the lights
ENDIF
ENDIF
;----------------------------------------------------------------
BEGINIF PLC-Button H Is 15/On            ->House Code H, Unit Code 15
Then Text-A T1<-T1 Text, H15
Then Text-A Set <Space>
Then Text-A T1/A<-Stt PLC-Command H
Then Text-A Set Log/Speak                ->Log and speak motion detector activity
If Daylight Is True                      ->If it is light outside
Then Timer, Deck, Down Set 90            ->Set the motion detector timer
Then Timer, Rear Set 90                  ->Set the group timer to control the lights
BEGINIF Daylight Is False                ->If it is not light outside
Then Timer, Deck, Down Set 180           ->Set the motion detector timer (note the higher setting)
Then Timer, Rear Set 180                 ->Set the group timer to control the lights
ENDIF
ENDIF

Then the timer events.  Notice that all these events can reside under one title (effectively one event).  This makes it easier to keep track of where the events are if you ever plan to change anything.

; The first motion detector timer to control the state of the
; motion detector item.
;----------------------------------------------------------------
If Timer, Deck, Up Is GE 1
Then Motion, Deck, Up Set On
Else Motion, Deck, Up Set Off
;----------------------------------------------------------------
; The second motion detector timer to control the state of the
; motion detector item.
;----------------------------------------------------------------
If Timer, Deck, Down Is GE 1
Then Motion, Deck, Down Set On
Else Motion, Deck, Down Set Off
;----------------------------------------------------------------
; The third motion detector timer to control the state of the
; motion detector item.
;----------------------------------------------------------------
If Timer, Rear Garage Is GE 1
Then Motion, Rear Garage Set On
Else Motion, Rear Garage Set Off
;----------------------------------------------------------------
; And finally the group timer that controls the lights
;----------------------------------------------------------------
If Timer, Rear Is Now 1                   ->When the timer reaches this
Then Rm, Rear Set 0                       ->turn off all the lights in the back yard.  The light heirchy
Then Event-Call Set Rm, Rear              ->will explain how this is accomplished with one command.
If Timer, Rear Is GT Now 90               ->Anytime the timer is greater than or equal to 90, we
Then Rm, Rear Set 1                       ->turn on the lights in the back yard, again with one command.
Then Event-Call Set Rm, Rear