On the Project Issues tab how can you set a new filter? Right now when I click on my project I see a summary tab and under that I see an issues tab. When I click on that I get a nice view of the project by things like staus, priority and so on. I see there is a filters section. And under that there are several things you can click on like outstanding, all issues, resolved and so on. How can I add my own filter to the filters section?