Thanks, Geoff.
That's a great tip that I can use (I've been stringing together the range portion of the REFERS TO of the NAMES.ADD to change the range).
But, I'm not sure how that's help me keep my list of sheets up to date when sheets are DELETED? Am I missing something.
FYI - My app have several protected sheets (proprietary) and several unprotected user-defined sheets (I lock and unlock the workbook as the user moves around). I need to keep track of the user-defined sheets to drive some in-cell dropdown lists.
TMKTECH