There isn't much to add here except we do watch all the inside motion detectors and when they all are false (and a movie timer is > 0), Sign of Life goes false which starts a couple of events for inside lights only.  Here is the event called "Actions, Sign of Life" which has all the actions taken by Mary for changes in the sign of life:

;----------------------------------------------------------------
; 1. While sign of life is true and it is dark outside...
;----------------------------------------------------------------
BEGINIF Sign Of Life Is True            ->This section keeps a timer held at 1200
And Daylight Is False                   ->seconds so we keep an appearance of
Then Timer, Sign of Life Set 1200       ->someone being home.  The bottom of this
ENDIF                                   ->file shows the rest of the story.
;----------------------------------------------------------------
; 2. If sign of life was just changed to true.
;----------------------------------------------------------------
BEGINIF Sign Of Life Is Now True        ->Here we want Mary to log and speak when
Do Text-B T1<-T1 Text, Sign of Life     ->Sign of Life is noticed/detected.
Do Text-B Set <Space>
Do Text-B T1/A<-T1 Text, Detected
Do Text-B Set Log/Speak
BEGINIF Timer, Movie Is LE 0            ->Prep the main stereo to play a welcome
Do Event-Call Set SS, Yamaha, Off       ->CD based upon the time of day.  First
Do Event-Call Set SS, Yamaha, On        ->check to see if someone may be watching
Do Event-Call Set SoundSys Vol 0        ->a movie, then reset the volume and set
Do SoundSys Selected Set 1              ->the stereo for listening to a CD.
Do Pause Set 200
BEGINIF Awake Is False                  ->If it is late, play a classical CD (keep
Do Playing, CD Set CD RND Classical     ->it quiet)
Do Playing, Track Set Random <16
Do Event-Call Set Soundsys Selector
Do Volume:Yamaha Set 5                  ->Notice the lower volume level
ENDIF
BEGINIF Awake Is True                   ->If it is a little earlier in the day
Do Playing, CD Set CD RND Christian     ->play a little louder CD
Do Playing, Track Set Random <16
Do Event-Call Set Soundsys Selector
;Do IR Sony 4 Set Send->1
Do Volume:Yamaha Set 7                  ->Notice the higher volume level
ENDIF                                   ->We will introduce the event that watches
ENDIF                                   ->the volume level in the whole house audio
ENDIF                                   ->section.
;----------------------------------------------------------------
; 3. If sign of life was just changed to false.
;----------------------------------------------------------------
BEGINIF Sign Of Life Is Now False       ->Here we want Mary to log and speak when
Then Text-B T1<-T1 Text, Sign of Life   ->Sign of Life is no longer detected
Then Text-B Set <Space>
Then Text-B T1/A<-T1 Text, Detected, Not
Then Text-B Set Log/Speak
Then Event-Call Set Garage Close        ->Just in case the garage door has been left open, close it.
Then Group, Inside Set 0                ->Turn off all the inside lights
Then Event-Call Set Group, Inside
Then Event-Call Set SS, Yamaha, Sleep   ->Set the main stereo system to sleep for 30 minutes
Then Event-Call Set SoundSys Vol 0      ->Reset the volume level to zero
Then Volume:Yamaha Set 5                ->Set volume to 5
Then Motion Ctl, Office Set On          ->This is explained in Downstairs Lights
If Daylight Is False                    ->This is explained in Sunrise/Sunset
Then St, Fan, Bd, Master Set 1          ->We like to sleep with a fan on and this
Then Event-Call Set Fan, Bd, Master     ->insures the fan will turn on after everything is turned off.
If Daylight Is True
Then St, Fan, Bd, Master Set 0          ->Same thing except we don't want the fan on
Then Event-Call Set Fan, Bd, Master     ->in the daytime
ENDIF
;----------------------------------------------------------------
; 4. Keep the truck engine warm
;----------------------------------------------------------------
If Sign Of Life Is True                 ->We have a diesel truck that likes to be
Or Awake Is False                       ->kept warm.  No sense in keeping it warm
Then St, Block Htr. Truck Set On        ->when we aren't home in the daytmie so the
Else St, Block Htr. Truck Set Off       ->block heater is only on if there is sign
If St, Block Htr. Truck Is Now On       ->of life or it is night.
Then Sw, Block Htr. Truck Set On
Else If St, Block Htr. Truck Is Now Off
Then Sw, Block Htr. Truck Set Off
;----------------------------------------------------------------
; 5. Keep Christmas lights on if someone is home.
;----------------------------------------------------------------
If Sign Of Life Is True                 ->Hold the timer for controlling Christmas
Then Timer, Xmas, In Set 1200           ->lights at 1200 seconds until sign of life is false
;----------------------------------------------------------------
; Sign of Life timer actions start here.
;----------------------------------------------------------------
If Timer, Sign of Life Is Now 1         ->This turns on lights visible to the front
And Daylight Is False                   ->of the house 20 minutes after sign of life
Then Rm, Stairs Set 6                   ->life is false to give the appearance of someone
Then Event-Call Set Rm, Stairs          ->still being home.