The ambient RunningStatGroupLevel is the value inherited from the cell's Cell.ParentRow in the case where its own RunningStatGroupLevel property is not explicitly set.
If the value of the IsRunningStatGroupLevelAmbient property is true then both the AmbientRunningStatGroupLevel and RunningStatGroupLevel properties will return the same value.
Target Platforms: 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