I second this request. If it were also possible to add text boxes that could access metadata stored with the 3DC file, we could make use of the asset elements in Collada, to track authorship, copyright, licensing, and version/revision numbers.
There's also a field in the asset tag to specify the authoring tool, which would help to promote the fact that a given model was made with 3DC, but just as importantly, will lead to the ability to automatically re-import models when they are changed in 3DC, since the Collada asset element can point at the original 3DC file, making it possible for a third-party tool to check when it has been modified.