Change the query that is assigned to a webi table

I created a new webi report by duplicating one of the document's existing reports. I did this because I want to preserve the formatting, input controls, and other logic that is contained in the report.

Now I would like to change the query assigned to the table and crosstab on the new report. While I know I can manually switch the fields using the table's Assign Data... feature, I was hoping there would be a less-cumbersome way of doing so.

Is there an easy way to change the query that is assigned to a webi table and crosstab?