Can you explain what you mean by referenced?
The Layers system in Maya provides the ability to:
Template (greyed out wireframe) and it is shown by a T in the layers window
Reference (black wireframe) and it is shown by a R in the layers Window
Both these options make geometry unselectable
Blank (no option and blank box) will allow ou to work on an object.
Chris (formerly R@nSiD)
Twitter
When the power of love overcomes the love of power the world will truely know peace - Jimmy Hendrix
Winner SM VFX Challenge 1
3rd Place SM SteamPunk Challenge (May 2007)