copying objects from one zaxwerks project to another...

Is it possible to copy objects from one zaxwerks comp into another?

I am having 3D elements "add on" over time. I made several different layers in AE and each layer has it's own zaxwerks project. 1st layer has race track oval(3d zax)... 2nd layer has race track oval and granstands(3d zax)... third layer has race track oval, granstands and start finish line(3d zax)... so on and so forth

I staggered layers and animated the layer transparency so it looks like the 3D objects are fading up.

It worked fine but now they want to add an object the reveals on in second layer. I need to add those objects to the proceeding layers too in position. Any suggestions so I do not need to start from scratch?

Oh how I wish there was a way to keyframe each objects transparency in zaxwerks...

Jen