Questions on AS 2012

I just upgraded to AS 2012. I went into the snapshot screen in graphics and noticed the auto generate function. I created 20 screenshots for stormy wx. Does this mean that if I do a flight plan in bad wx that one of the themes I created in stormy will be selected ? When I enter a flight plan I am asked if I want to install AS 2012 graphics or snapshot graphics. Are AS 2012 graphics wx influenced ? When using the flight planner if I select install AS 2012 graphics is the selection made from all textures or only existing themes ? Is the snapshot function intended for users of add ons such as REX only. I am currently using the graphics in AS 2012. Finally what effect does using wx edit have on the above ?

Henry