Duplication in Option Lists Ben Ray Updated September 11, 2015 18:41 Follow Non-Unique Options Option Lists can have duplicate labels provided they have different key_values. Watch the video below to see an example of how to create an option list with unique key values for each choice. Unique Option List Keys Related articles Option List API 5.1 Classic Builder: Divider Element Change output (key_value) of options How do I pass data between Parent and Subform? How do I access the old form icons? Comments 0 comments Please sign in to leave a comment.