The release notes for version 6.4 contain this interesting item:

* Added IDs to home objects which may be modified.

I have a use for this feature. I am writing a script to convert SH3D files to X3D files. I would like to set the ID on certain elements so that event handlers can be attached.

I have checked and the home objects in the SH3D files now indeed have ID attributes. What I can't find is where in the GUI one can change the ID of an object. Could someone tell me where to look? Thanks.