From the live tracker, clicking the Filter option allows you to filter the data present by Grades and Student Attributes such as Pupil Premium, Ethnicity and SEN Need. You are able to combine multiple attributes to a filter if you wish.

When filtering by grade, you can first select whether to go by a specific test, unit, or your students' average unit grades, before indicating the grades you are looking to see

Once a filter is applied to your tracker, a red bubble will show along the top bar to notify you that some students may not be visible. Any filter will stay on the tracker until you turn it off, so be sure to keep this in mind for when you come back.