I tried just moving folders around this weekend and it screwed everything up, had to reinstall from scratch.
It can be done easily, I’ve done it for years and so have many other people here. But, and it’s a big red but with flashing hazard lights, there are things it’s safe to juggle around any way you please, and there are things that are third-rail territory. Looks like you found that third rail.
Note that if you do this, you will break Smart Content and the Content Management System for anything you change. If you don’t or can’t use the CMS or Smart Content, go ahead. But first, sign this disclaimer: [............................]
/My Library/data/ - This must never be touched — like most of the “don’t touch” locations, the contents of this can’t be seen from inside DAZ|Studio, so the only effect of tidying up in here will be to break your content.
/My Library/ReadMe’s/ - Contains all except the more recent readmes from your installed content. Again, invisible to you, so you can move this somewhere else if you like although you won’t see any effect. But it will be recreated the next time you install something with an included readme.
Any other /My Library/ folders will usually contain scene and script files for your content, and should be safe to move or rename, except…
/My Library/Runtime/ - Contains all your Poser-format files.
/Runtime/Geometries/ and /Textures/ - Exactly the same big flashing “do not touch” as the /data/ folder. They contain files that are referred to by other files, so again, if you move things you break things. And again, they’re invisible to you anyway, so don’t bother.
/Runtime/Support/ - Contain the metadata files for your installed content used by the CMS and Smart Content. If you use this, don’t touch. If not, you can safely ignore this folder.
/Runtime/Libraries/ - Contain the Poser files you can actually see in the Content Library tab (with exceptions).
/Libraries/Camera/, /Character/, /Face/, /Hair/, /Hand/, /Light/, /Materials/, /Pose/, /Props/ - The contents of these folders are generally safe to move or rename. Don’t play around with the folders themselves, or everything in them will become unfindable.
Any other folders in /Runtime/ or /Runtime/Libraries/ will usually contain the raw data files for morphs called up by other clickable files in /Libraries/Pose/ - if you “tidy up” these files that you can’t see anyway, you will break the related content.
I think that’s everything: can anyone see something I missed?