Sorry for the late reply. For the figure am not sure what figure it is but i have a guess but ill leave it at that and yes in DAZ Studio you can use G3F stuff on G8F because it'll give the Char a more unique look; most likely due to the fact that everyone is using all the new and fairly new hairs too much that it got boring so why not use G3F as not many people are.
Thanks guys. 🙂 I tried to recreate the same character, but it seems there are some custom morphs used for the face, because it looks a bit off to me with just the LY Camille HD figure.