here's how i have mine setup:

all original poser 6 content is under original runtime...curiouslabs/poser6/runtime...then i have everything else (m3,v3,ect) under the downloads runtime...curiouslabs/poser6/downloads/runtime.

everything in pbooost is still accessed through the same subheads as in poser ie; figures, poses, props, ect. but you can even break everything down further than that if you want. like in poser if you want to access m3 (for instance) you have to go to figures/dazpeople/m3...me i just go to figures/m3...and there he is. maybe using m3 isn't a good example because you probably use him so much that you know exactly where to go, but what about those shoes, or armour just for him. what the hell where they under, zygote, blackhearted (free plug!),  bladesmith...now where are those things!?

i have my stuff broken down under props as weapons, armour, clothing, architecture, ect...plus you can see everything at once without scrolling all the time, pictures included (see attached). i can open pbooost twice (side by side) and drag and drop, making a new folder is just that easy, then drag and drop. renaming is easy. between learning modeling, poser, photoshop, cr2's, materials...i have better things to do with my time then making multiple runtimes, constantly scrolling, where is that belt!!!

it was a huge improvement for me from day one. i am going to reorganize it again and further break stuff down to individual characters, but i am not stressing about that. it will take me less time than working in poser and i won't be frustrated by it taking all day. it is very easy to work with, you tell it what to do...not the other way around.

so in answer to your question...all i have is 2 runtimes, going from one to the other is as easy (and as fast) as a mouse click. this might sound like an advertisment but it isn't. i am an artist and i like to be creative, and i understand that sometimes creativity can be laborous (like getting just that right kind of texture and bopping back and forth between photoshop/poser/materials) but i choose not to labor over organizing my booty...i let a little program do that.

me...i just want to create.

Comitted to excellence through art.