Quote - so far as I know, it's a one way process.  You can either set up your scene in Poser then use interposer to bring it into C4D or you can create the scene directly in C4D - Interposer can read Poser runtimes quite happily and you can load and conform figures/clothes etc.

I only played with it quite briefly but I was seriously impressed

If that is the case, Can I create everything I need in Poser? If yes, then I think that is everything I would need.

Don't let failures get to your heart, and also do not let success get to your head.