Enable text input field in form when checkbox is checked

Hi Experts

In the Form Designer there is a “Conditional” option that can make a text field visible or hidded depending on the state of another object, e.g. a checkbox.

That part is working fine. However I would like to have a condition where a text field is either enabled or disabled for input based on the state of a checkbox or clicking a button. Is that possible?

Ever get an answer to this?

Can anyone tell me if this is possible. I need to have an select file box come up if a checkbox is marked as true.

that will requires Java script and sure is possible