Ranking candidates

Summary

Am I missing something? How to manually rank candidates...?

Content

I am fairly new to Taleo though I have used other ATS's in the past. I am a recruiter and not a systems person. When reviewing candidates I would like to be able to give them a rank as I am looking at their resumes/profiles so I know which candidates to contact first. Managers are also asking for this feature. Right now the only thing we can do is change the status to 'reviewed resume' but it does not help us to quickly know which candidates to focus on first. I see a req rank field but the field is blank and nothing can be entered