Report Column Option Missing

Report Column Option Missing

I'm running the 'Interview vs User' report, which is vital, but it's not presenting me with the ability to show the client name as a column.

I can add if it's a hot job, the rate, the stage, the number of candidates associated with the role - but I can't see which client the interview is with unless I click the interviewer's name, which makes the PDF export useless.

Can you add the ability to select the client name as a column in the reports please?