It depends on what you want to happen. Conditional formatting can implement
formatting changes. Formulas will recalculate. So yes, some things can be
done.
Yes, that is correct. Conditional formatting will not react to just the
fact that a cell has been changed. I was referring to its ability to change
a cell format based on a calculation or condition.
It sounds as if you need an event macro, and I am sure someone here can
provide one directly or help with a suggestion on where you could look.