I'm not sure if you're having the same trouble I used to have, but I tried using the presets and they don't work (Daz 4.16). I posted this ages ago for Quinn's earring. It's about getting boned G3 figures to work on G8, I tried it with the hair and it works. You should now also be able to select the tail and rotate it around.
One useful hint for fitting rigged G3F items like the earring to G8F, this also works for long hair.
- Make sure nothing is selected in the scene window, to avoid auto-fitting.
- Load the earring. Select the earring.
- Right click the Scene tab, edit, Scene Identification.
- Change the Preferred Base to Genesis 8/Female.
- Accept/Accept
- Then right click the earring in the scene window and fit it to G8F. You should be able to select and pose it like normal.