This is the documentation for Clover Club 12.0.
Documentation for the upcoming version Rampur 13.0 can be found here.

Exclude Dimensions

Any point (or bar) that you do not want to be displayed in the chart can be removed. Click on the point (bar) and select the Exclude option. All removed points will be listed in the Excluded Dimensions table in the chart definition from where you can return them to the chart by clicking the bin icon.

In the same way, you can exclude a dimension in the chart data table.