How to change the grouping order
Select a column. From the context menu, choose ColumnReorder Columns. Arrange Columns, as shown in Figure 5-12, shows the columns in the order in which the report currently displays the data.
Figure 5-12  
On Arrange Columns, select the grouped column from Available Columns. Use the up or down arrow buttons to move the column up or down the list. Choose OK.

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