basic dynamic form rules

I'm new to quickbase and I've read through their guide on dynamic form rules. I've also watched some tutorials. But the highlighted rules aren't working.
When the field, Type of Device, is selected as computer, I'd like the field, Attendant to appear.
When the field, Type of Device, is selected as printer, I'd like the field, Wave ID to be required.
When the field, Area, is selected as Fabrication AND the field, Type of Device is selected as computer, I'd like the field, Built in or Stand alone to be required.
When the field Area, is selected as Fabrication I'd like the field Fabrication Machine to appear.
I've tried different actions and I'm not sure what I'm doing wrong.