Short answer - yes.

 

Long answer: you'd need a modeling tool of some kind, wings3d and blender are free and I think hex might still be free over at daz.  Then you have to learn to use it.  Then you have a few options.

1.  Create a new prop (shutter) and parent it to the original in poser.

2.  If the geometry allows it you can tweak it to be a figure.  Figures can have bendy parts.  This involves using the setup room.

3.  Tweak the obj file (back it up first) in your modeler and then save it with a new name for use as a morph.  Then you have to load the morph into the original prop in poser.

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)