Pivot Charts, hiding field values in second level filters?

Hi

What I have is a Pivot Chart / Table, where I have multiple filters on the data. For example I have Leagues, Teams, Players.

What I have are Leagues and Teams in my page fields and Players on the series axis. This allows me to select the League I want to look at and then the Team within that League. I can then select multiple players (1..n) from that to view the data on. (Assume data is a monthly statistic of some sort).

If my data were

League Team Player Jan 05 Feb 05 etc.....

L1 T1 P1 5 6
L1 T1 P2 3 2
L1 T2 P3 6 6
L1 T2 P4 7 6
L1 T3 P5 3 8
L1 T3 P6 5 9
L2 T2 P4 6 4
L2 T2 P5 2 5
L2 T3 P7 4 6
L2 T3 P8 5 1
L2 T3 P9 9 6
L2 T4 P4 6 3
L2 T4 P5 2 7
L2 T5 P6 5 8
L2 T5 P7 7 9

L2 T5 P8 5 3

When I select L1 from my League field, I can still see all the Teams (T1-T5), however T4 and T5 can never have data in them, and the graph i get is blank. What I want it to do is only show me T1, T2 and T3 when I select L1 and to show me only T2, T3, T4 and T5 when i select L2.

Is this possible? Can you form hierrachical fields in a pivot table, how do i need to have my data in my table to do this?

Any help would be appreciated, as this is driving me nuts!

Rob

Nobody knows?? Does this mean it is not possible??