I'm working with a fresh Dynamics CRM 2015 instance, so I'm not worried about existing records.
I have a number of fields that I'd like to create global options, and then switch existing fields to offer them.
As the image shows, Existing Option Set is greyed for every current field of type 'option set.'
So I guess I'm missing something basic to unlock them.
Is there a way to unlock this control?
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