Putting a display condition on a question

I have three modules in my app: Modules I, II and III. Is it possible to put a display condition on a question on a form in module II based on an answer of a question in module III? Module II and III have different case types

Maybe you can try to use user case properties to pass your constraint from one form to the other...

https://confluence.dimagi.com/display/commcarepublic/User+Case

You'll need a CommCare Software Plan to use it thought...

-Michel