this kind of goes against the purpose of a coded value domain, but...
a single field, any way to allow users to:
1. choose from drop-down domain value
2. enter free text
appears that now, it's either option #1 or #2, not both.
This is only possible if you are using subtypes with your domains and off of the subtype 1 you have the domain listed in the template and subtype 2 there is no domain and its just a text field.
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