There are instancing solutions for Poser using PoserFusion.

In Vue, check to see if the version you have has PoserFusion included. Not all do, but some. Vue's instancing is quite good, but its pretty much focused on trees and plants. And its awesome! I use it all the time in rendering natural scenery.

Shade 3D also has PoserFusion, and it has its instancing implemented in what are called Replicators. There are two types: surface replicators and path replicators. Surface replicators are great for anything you might also do in Vue. Path Replicators are great for replicating objects along a path, like chain links, for example. Because you can use offsets too, you aren't limited to just random stuff along surfaces but distributions in space around the object.

What makes PoserFusion so clever is that since you are hosting the scene within Shade or Vue, you can go back, make changes to your Poser scene, then updated it directly within your other project.

Best regards,

chikako
Meshbox Design | 3D Models You Want