Is it possible to make one checkbox option a text field that a client c

Is it possible to make one checkbox option a text field that a client can type in an option not listed?

If I'm understanding your concern correctly, you would like to add an "Other" option on the Checkbox field in a Configurable List widget.

I would like to apologize, I'm afraid that it is not possible to include an "Other" option to a checkbox or radio button field in a Configurable List widget.

If you have other questions or concerns, please do not hesitate to let us know.