Shadow info parametres

[Pout]

Ths is what i found in ruby api:

* City (in Model Info > Location -- City is called "Location" in the UI)
* Country (in Model Info > Location)
* Dark (in Model Info > Shadows)
* DaylightSavings
* DisplayNorth (in Model Info > Location > Show In Model checkbox)
* DisplayOnAllFaces (in Model Info > Shadows)
* DisplayOnGroundPlane (in Model Info > Shadows)
* DisplayShadows (in Model Info > Shadows)
* EdgeCastingShadows (in Model Info > Shadows)
* Latitude (in Model Info > Location > Set Custom Location)
* Light (in Model Info > Shadows)
* Longitude (in Model Info > Location > Set Custom Location)
* North Angle (in Model Info > Location)
* ShadowTime (in Model Info > Shadows -- In Time section)
* SunRise (Generated based on ShadowTime)
* SunSet (Generated based on ShadowTime)

This is what is available in Sketchup Ruby
City
Country
Dark
DayOfYear
DaylightSavings
DisplayNorth
DisplayOnAllFaces
DisplayOnGroundPlane
DisplayShadows
EdgesCastShadows
Latitude
Light
Longitude
NorthAngle
ShadowTime
ShadowTime_time_t
SunDirection
SunRise
SunRise_time_t
SunSet
SunSet_time_t
TZOffset
UseSunForAllShading

Now on the last setting: is there a difference with this option set to on or off?