Matrix Column Grouping

Hi,

I have a requirement from my users to be able to drill down for a single column in a matrix. I've been able to implement drilldown for all of the measures (all columns grouped at the same time) in my matrix but they now want to be able to group different columns independently of each other. In other words they want to be able to group the data in different columns by different things.

An example might make my question clearer, the report would need to look like this: 



Client Name
Sales -
Costs +
Revenue -

Client A +
Europe +
Middle East +
Asia Pacific +
$12,000,000
Products +
Investments +

$12,000,000
$8,000,000
$4,000,000
$10,000,000
$22,000,000

Client B +
$77,000,000
$16,000,000
$9,000,000
$22,000,000
$8,000,000
$32,000,000

As you an see, the Sales measure has been expanded so it's grouped by region so the sales figures can be seen for all clients and the 3 regions. The revenue column has also been expanded/grouped so that you can see revenue figures for products and investments for all clients. Costs is not expanded but it could be by clicking on the '+' which would group the data in that column by something else. They have asked for more than 1 level of drilldown, so clicking on "Europe" above would allow another level for the sales measure which might be country. There will also be regular measure columns that are not drilldown/groupable columns.

Is it possible to implement this with SSRS 2005?

Thanks,

Lachlan