How to edit a linked report

Hi All,

I have a base report that runs off a SP, then there is a linked report off this base report. Now i have to edit the column names for that particular linked report and when i try to click on "Edit in Report Builder", i'm getting the following error message, can some one please advice or point me in the right direction?

The operation you are attempting on item 'LinkedReport' is not allowed for this item type. ---> Microsoft.ReportingServices.Diagnostics.Utilities.WrongItemTypeException: The operation you are attempting on item 'LinkedReport' is not allowed for this item type.

Thanks

SV