Sage 100

I need Crystal help. I am trying to edit the Job Cost Code Detail Report (under custom reports menu), MAS90 4.3. The client wants a total at the end of the report for each cost code. If she selects 5 jobs for her report, she wants a report total line for each cost code used in the entire report. If this is possible, it is beyond my Crystal skills. Thanks.

Would it make sense to build a subreport with the cost code totals and add it to the bottom of the report?