You can use the IndentationGroupByRow property to specify how much indenting should be applied to the GroupBy rows in a band. The default value for this property is -1, which indicates that the grid's default indenting should be used.
The indentation of the GroupBy rows is a function of the IndentationGroupByRow value and the row's zero-based depth-level. In other words, the top-level GroupBy rows in a band will always be flush against the left edge of the band because the top-level GroupBy rows have a depth-level of zero.
Note: If this property is set to 0 then the left edge of all the GroupBy rows in the band will be at the same X coordinate. In this situation the grid automatically determines the location of the expansion indicators in each GroupBy row such that the relationships between the groupings are visually represented via the relative location of said expansion indicators. The indentation of the GroupBy row expansion indicators is, in this case, a function of a GroupBy row's "depth level" and the IndentationGroupByRowExpansionIndicator value of that GroupBy row's respective band.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2