I want to have a dropdown/picker field that allows use either select from options or input a value when it is not in options
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For picker fields, I discuss this in a blog post: https://appian.rocks/2022/12/22/create-new-items-using-a-custom-picker/
For drop downs, I typically add a "+" button that allows the user to enter a new value in a text field that replaces the drop down.
Awesome, thank you!