I'm just adding the possibility to allow the user to enter values with different units into NumericUpDown controls in the OptionBasedLibrary.
Wikiipedia says the inch symbol is ( in ) or a double prime ( ″ ).
So here is a question for the non-metric-oriented developers or users ;-)
What does a user type on the keyboard:
in, double prime, double quote or two single quotes?
No idea what should be allowed.
The screenshot shows in the tooltip what is used in the moment: