No clue how many figures I can have in a scene, wouldn't count on a lot :D However it made me wonder whether it would be possible or interesting for Poser to have an Xref functionality. For those not sure what that is, its basically that you load in a very simple dummy object instead of the real model, but as you render the real model is used instead.

Could be nice for making huge crowds, so you would basically get a very simplified character that you had animated or posed before hand and you could simply place them in the scene, without hurting performance. Would welcome such feature :D