SharePoint 2003 OWC Drillthrough

[Lawrence]

Hello,
Currently, I can view cube data through SharePoint 2003 OWC, but it does not
allow me to drillthrough even after I have enabled drillthrough in Analysis
Services.

I know in Excel, I have to download Cube Analysis add-in (which is not very
easy to use)to drillthrough cube data. Is there similar feature in
Sharepoint where user can drillthrough? Any help to shed some light on this
feature in SharePoint is appreciated.

I am hoping to drillthrough for both 2000 and 2005 cubes.

Thanks,
-Lawrence