Editable dropdown list?

My dropdown list returned "A", "B", and "C". If I want to enter another value not in the list, for example, "D", it only shows "No options".
Is it possible that the dropdown list accept my edited value? Appreciate it!

You can use a multi-select, but if you want to ensure that only one item is selected you would have to account for that as well.

Got the answer from Retool OH!
In the "Advance Setting" under "Intersection", simply check "Allow custom values".

Hi @ScottR
Thanks for your reply!
Yea your idea definitely is a method. The answer to my question is tagged in the post. You can check it out!