Add multiple levels for column headers in grids
To add two levels in the grid header, use the // symbol in the Display name in the Data wizard to distinguish one level from another.
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Open the Data wizard of the grid.
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Click Add new data and select another series.
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In the Display Name, specify the name for the first level, then add // and the name for the second level.
- Click OK and open the View in the Preview/Viewer.