I don't believe so, on my previous comment. There is another way to get this functionality.
The other way is add the choice that you want to have open a textbox in the choices tab. Then make a question with a type of text and use the relevant column for that text question to show the textbox based the answer to a specific question.
For example if the choices for the select_one question are yes, no, or something, and you want the user to specify what something is. Then create the text question underneath with ${nameFieldOfPreviousQuestion} = 'something' in the relevant column.
I have an image of how to use the relevant column below.