How to "layer" sceneries

Hey guysI have a quick questionI have several G2xpl sceneries downloaded at various LODsI would like to layer them, but keep them separate as space on my X-plane drive is a factor.From what I gathered this can be accomplished by putting Zs in front of them.So My base scenery is Florida at LOD 17I want to add some smaller sceneries of some airports I fly out of regularly at LOD 18(or even 19).I am downloading them into separate folders.So would it be something like this in my custom scenery folder?z_Miami 18z_Tampa 18ZZ_Florida LOD17Am I on the right track here or is something off?Thanks