Thanks. I've just sent the email :)
I'm not seeing a way to do that, but I'm also not sure of all of the options that exist on that tracker. The best way to get help with this is to go to your tracker and click the "help" link that should appear at the bottom right-hand side of the page.
Let me know if that works for you. If not, I'll find someone more knowledgeable to stop by here.