How and where do they go in the scenery library as far as order and placement are concerned?  Does Base go above LC or is it LC above Base?

When you Install Global Base it will find it own way and Install there (At the Bottom)     Again LC will find its own order when you Install it. 

 

 

Have a peep at this Post,  This is the correct order.   

 

 

http://www.orbxsystems.com/forum/topic/108487-tongass-x-and-ftx/#comment-975652