Subject Area - Column collapse aggregation

Summary: Subject Area - Column collapse aggregation

Content (required): Hi, I am trying to build a report to display Position FTE, and Incumbent FTE. However, to calculate our active Incumbent FTE, I've added in a conditional statement of:

CASE WHEN "Workforce Management - Worker Assignment Real Time"."Worker Assignment Details"."Assignment Status Type" = 'Active' THEN "Workforce Management - Worker Assignment Real Time"."Worker Assignment"."Full-Time Equivalent" ELSE 0 END

As shown above, the yellow value is our newly replaced value within the table. I understand that if I set the aggregation rule under Edit Formula to "Sum", I could use the page layout to create a summation under the each appropriate position, but we do not want to have a separate row for each employee. Because of this requirement, I'd remove the column responsible for splitting the rows, namely the Name column. But upon removing this column, the auto aggregation for the value turns up as shown below: