Manadatory field on 7502

Manadatory field on 7502

I installed the last update (7502) last week but I have a problem.
How to define that the priority field is mandatory? Indeed, I found a place where I can specify that this field must be mandatory if you want to close the request but I want that this field was filled by the requester? (like old version)

Let me know what is the best way...


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