How can I change a field type - from text to choice?

Hello Alan. It's not possible: you can't convert the field type after its creation. You should create a new one.

Fabio

Um, you can't "convert", but you can copy the values in your text field to a choice field as I described here...

https://ninoxdb.de/en/forum/technical-help-5ab8fe445fe2b42b7dd39ee7/how-can-i-change-a-field-type-from-text-to-choice-5c4a1db11c7e9761dc5e5eed

If you have any questions about the process, I can explain it in more detail.