We would like to set up a Production Support project in JIRA where all our customer can file their issues. We would like to set it up so that each customer cannot see other customers issues. Is this possible with security settings. I have been trying to mess around with some test users to see if this is can be done and so far I can only get it to work if i create custom fields that need to be specifically filled out, but at the same time I do not want these fields to be a required field and the fields leave open the possibility for the customer to create an issue for a different customer. We would like it so we do not have to set up separate projects for each customer. Please advise.