To prevent premature submission I can set entry fields to “required”. That’s great!
But what if not a single field should be filled in, but either field A or (!) field B? I cannot set both to “required”. Rather I need to check the condition manually and prevent submission as long as none of the fields are filled in.
How to do that? Maybe I can set up a calculated field checking the condition. But how to disable the submission buttons as long as this “is valid” field is false?