work tracker

Hi have work tracker and due dates active on a test site for Open Atrium. All ok except when I want to assign a task to a user in the assign to field. The user is missing? He is a member of the space and group. Where else do I need to go to make sure we can select the user?

Thanks

Jason

I am trying to use Open Atrium for development project issue tracking. I am seriously struggling with some functionality. E.g. I am trying to find how to enable auto-numbering for tasks (which I use as tickets). Is there a way to do so? Also, I would really love to add additional fields to Work Tracker tasks - I need version and milestone fields. Is there a way to add those without programming? Would really appreciate your input!