MAS Intelligence question: A customer wants to alter the income statement to show profitability of service separately from profitability of product sales. Can I add in lines in Excel template within the account listing, or will that screw up the totaling (ie add my subtotals into the overall total again). I also fear this will be rather fragile if they add accounts, but maybe I am being paranoid about the wrong things...
Pointers to actually useful docs gratefully accepted - the intro courses don't count.