i disabled 'pop up labels' on the presentation tab.
then i added a 4th expression with 'text as popup' enabled with a multiline expression like this that forms the label:
'Region = ' & Only(Region) & chr(10)
& 'Sales = ' & sum(Sales) & chr(10)
& 'Total = ' &sum([Gross Margin])/sum(Sales)
it appears to wrok...give it a shot
ABC.qvw 207.8 K