Well, after seeing the responses here, I went back and tried it again. I didn't realize that creating a figure would save it in the Figures directory and I'd have to hunt it down and tweak it there - I tried it with one of my freebie props that's currently 2 separate props, and darned if it didn't give me a nice, shiny new figure! I tweaked the center point on the moving lid of the box, turned off bend on BOTH parts (good to know! :-) ) and now it's a working CR2 just like the Great Bird intended (yeah, it's a Star Trek prop ;-) ).

Thanks for setting me straight! This just might make things a lot easier!