| The AggregateCol is a column that will appear in the location list. It will also be available in future stages, accessible by it's name.   Example of a pre stage section:   <AggregateCol>  <Name>Count</Name>  <Visible>True</Visible>  <Condition>          <Line>True</Line>  </Condition>  <DisableEscaping>False</DisableEscaping>  <Calculation>          <Expression>                  <Line>LocationList.FirstCount</Line>          </Expression>          <Type>Number</Type>  </Calculation>  <DisplaySettings>          <Format>                  <Line>AsStringF(This,"%g")</Line>          </Format>  </DisplaySettings>  <Summaries>          <Summary>                  <Name>Avg</Name>                  <Calculation>                          <Expression>                                  <Line>LocationList.Count.Mean</Line>                          </Expression>                          <Type>Number</Type>                  </Calculation>                  <DisplaySettings>                          <Format>                                  <Line/>                          </Format>                  </DisplaySettings>          </Summary>  </Summaries> </AggregateCol>         
| XML Tag | Description |  
| AggregateCol | The AggregateCol tag holds the information for each aggregate column. There is an AggregateCol for each column. |  
| Name | The name of the aggregate column. This will appear as the header for the column. This will also be used in expressions (accessible by using LocationList.<Name>). |  
| Visable | If true, the column will display in the location list. If false, the column will not appear in the location list (but will still be accessible in future stages). |  
| Condition | The Condition tag is a boolean expression that determines if the calculation is evaluated or not. |  
| Calculation | The Calculation tag holds the Expression and Type. There is one Calculation tag per AggregateCol tag. |  
| Expresion | The Expression determines the value of the aggregate column. |  
| Type | The type that the expression will result in.  |  
| DisplaySettings | Holds information for formatting and displaying this aggregate column.  |  
| Format | The expression that defines the final output of the aggregate column. The keyword "This" can be used to refer to the current AggregateCol. |  |