Thanks, I managed to get the functionality that I was looking for with this plugin:

http://sketchucation.com/forums/viewtopic.php?f=323&t=18691&p=473387#p152438

Cheers!

Thanks for this great plugin, that's exactly what I was looking for

Hi, I have created a simple box model in free Sketchup 8 and want to set the origin of the model's bounding box to exactly its center. I tried with this plugin but after running it on my model in Sketchup nothing happens.

Is this Axes Tool / Insertion Point Plugin not the correct solution for my needs, or have I missed something here?

Thanks!