The KS5 Performance Cohorts, Best 3 A Levels, or Eng/Mat Progress reports include an Update Student Inclusion button:

Select Update Student Inclusion to clear any student measure filters currently applied, and apply those relevant to the current view. This lets you easily navigate multiple measure views and, see only the students contributing to the Headline figure for each measure. For example, when you select Update Student Inclusion in the Best 3 A Levels report, the report is filtered to shown only students included in the Best 3 A Levels measure. Any other student measures applied previously (such as Students Included in A Level cohort) will be cleared.

This will not affect any other filters applied, for example, Gender or SEN student filters - these will still be applied.