The add-on provides new custom field types that are not the same as the built-in custom fields. Those can have their options updated over REST, but they're not the core Jira fields.
You'd have to swap your existing custom fields over to the new types.
Hello! My name is Genevieve Blanch, and I'm the Marketing Manager at RefinedWiki, creators of apps to give teams the tools to customize Atlassian platforms. Currently, 44% of the tech team at Re...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs