After you create an asset, you can change the data and associated columns that the dashboard uses to create the asset.
To change the data, right-click the asset and select Change Data Connection. This opens the Change Data Connection dialog that shows you the original data set and the columns the asset uses. Use the dropdown menus under Change Data Connection to change the data set and the columns. When you select OK, the asset updates to use the new data.
To change multiple assets at once, select the assets, then right-click one of the assets and select Change Data Connection.