Named ranges with drop down list - is this how it works?

[lagrangePoint3]

I've set up a drop down list using data validation on a single row (A23-A33), for example.
But now I wish to redact one of the values.
If I shorten the cells, one of two things will happen:
(1) I'll get a blank where the value used to be in the drop down list, or
(2) I will have to visit every reference to the list of values and change it to reflect the new number of cells.

Now if I set up a named range for this list of values, and then redact a value, I will still see a blank in the drop down list, if nothing is changed in the reference,
but is there a way to reduce my work in changing the reference? If the reference was a named range (just guessing what that is), and I redefined the name to a reduced number of cells (A23-A32),
would I still need to visit every reference to update it, or would the new values for newly defined named range be used without my further intervention?

Thanks.

 

[Z51]

This page goes through a ton about Data Validation drop-down lists, including dynamic named ranges:

Easy Steps Excel Dependent Drop Down List Data Validation

Easy steps for Excel dependent drop down list. Conditional data validation based on other cell, Region/City. Videos, written steps, get free Excel file

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