unused functions

Hi all,

Constrained a bit for time, I admit to not researching this in advance.

The Function Call Browser is handy for revealing call dependencies
among functions in the loaded program. Is there a LispWorks way to
systematically reveal functions no longer referenced by the program,
though they are still loaded in the image? Ideally I could then jump
to the corresponding form and delete it from its source file.

Thanks for any pointers.

Brian C.