I use P3DO Explorer (the free old version that I don't know if is still available) to actually see what content I'm handling, and use just one Runtime. But I separate everything in subfolders...

In Figures, I have one folder for the DazFigures (base models), and another for each of these figures for their clothing and such, and another for all Hair (because those tend to be multi-figure). Inside V4 (because I have little content for everything else) I separate into style when I'm feeling patient (a folder for Fantasy, other for Lingerie, other for Modern and so on).

In Poses, I have many more sub-folders. For instance, in my Daz Victoria4 folder (named just the way V4's installer names it, to avoid breaking the INJ poses), along with the morphs and general poses V4's installer creates, I have a "!Characters" folder for characters, "!Clothing" for clothing mats and "!Poses" for installed ready poses for her.

In Props, inside a "V4" folder there are all my V4 smart props and the props that come with V4 clothing, plus the deformers (Like Kaposer's Naika, EasyBreast and EasyButtock) and the deformer folders I rename to put a "! " in front so that they show on top.

 

It's all a matter of how you think you'll find things easier. Also, whenever I download/buy new content, I install them manually, placing the textures and geometries folder where they should and anything inside "Libraries" I unzip manually directly in the correct folder. Everytime I use a Daz3d installer, I load P3DO and move their folders around to the correct place...

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Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.