Peo addressed the first part of your question, but to add items to the list you
would have to make it a dynamic range.

From Debra Dalgleish's site..........................

Some lists change frequently, with items being added or removed. If the list is
the source for a Data Validation dropdown, use a dynamic formula to name the
range, and the dropdown list will be automatically updated.

For instructions, view this page:

http://www.contextures.on.ca/xlNames01.html#Dynamic


Gord Dibben MS Excel MVP

On Thu, 10 May 2007 11:49:02 -0700, trainer07
wrote:

If I am creating a drop down list in Excel using Data Validation, can the
source part be located in another worksheet? I would like to put a
highighted range in the source box instead of typing in values/text. Also,
if I add items to the original list on the other worksheet or edit them in
any way, will my list box reflect this update?
Thanks!