Thank you very much MF. It worked perfectly. Instead of using maximum, I used rank to pick the top n, it accomodates users' need better.
However, I need further help if I could. How about this time, the table is a crasstab like this
REGION1 REGION2 REGION3 REGION4 REGION5 Total(REGION) ranking??
PL1 Metric1 1 1 1 1 1 5
Metric2 2 2 2 2 2 10
Metric3 3 3 3 3 3 15
PL2 Metric1 3 3 3 3 3 15
Metric2 2 2 2 2 2 10
Metric3 1 1 1 1 1 5
Can I still add an item to rank by Total(REGION), then pick the top 1 or 2 ?
Thank you.