I’m not sure yet if I have a need to do this, but I have started building a form where it MIGHT be needed - and in any case I can easily imagine wanting something like it sometime. I have a form that includes a multiple-choice field. The tricky part is that two of the five options in the field need to be mutually exclusive. In other words, if the user selects one of them, the other should no longer be an option. If one is yes, the other must be no. The other three options can be selected along with one of these two.
I can’t see a way to do this with a rule, but I can’t think of any other way to do it. Is it possible?