Automatically creating subfolders

Bruce McDonald, would you show me how to accomplish this? Do you have a screen shot? Thanks!

If I understand you correctly, I keep WL open and then open Explorer on top of it? I can understand how Explorer can find the plugin group, but how do you sync WL to the folder that Explorer opens? And how exactly do you organize 150 plugins? Thanks for taking the time, this is an issue for me, too.