What I would do...

 

Y rot & X/Z trans any single characters into position.

For the multi-character poses, I would choose one as a "leader" then parent the other(s) to it & Y rot - X/Z trans the leader into position as neccesary. 

Repeat last step as required for multiple figure groups (if applicable)

Scream profanities 'cuz Poser crashes @ render time & I fergot to save my scene.

 

Hope this helps, even if just a little, & good luck

 

(edited to remove unneccesary steps)

WARNING!

This user has been known to swear. A LOT!