Dynamic mask depending on popup option

Hey guys,

I found a good template for dynamically (de)activating a user input of a subsystem here. However, I am not sure about how to modify this template if I have a popup in my mask.

To be more specific, I want to have a list of three different options (e.g. Test, Validation, Measurement). Dependening on the selected criteria, a further prompt ("Input") should appear. For example, in case of having selected the option "Test", "Input" should be available. In case of selecting "Validation", Input should not be available.

How can I achive this?

Regards, Phil