Well, let's use a car as an example..

First load all the parts that will have seperate movement as individual obj's. wheels, doors etc, and parent them to the main body of the car. (i.e. the body will be the parent and the moving parts will be the children.

If you have an extended hierarchy like moving door handles, they would be parented to the door and the door to the car body and so forth.

WHen you have everything parented, open the Hierarchy Editor and select the parent item. Click "Create New Figure" ,, it will then be listed in the "New Figures" library.

Delete the current prop assembly and load the new figure you just created.

In the Properties window, UNcheck the "Bend" tic box for all the parts.

You then need to open the Joint Editor and move all the "Center Points" and "End Points" into the proper positions so the parts will rotate correctly.

Resave the figure or save as a new figure in the Library of your choice.

As for the ERC, the only way I know is by editing the cr2 in text. ockham is pretty sharp on that stuff, maybe shoot him an IM or perhaps he'll wander in and post some info.

Hey! His nose is dry! ... Someone should lick it,  just in case. - Diego