BCGControlBar Pro for MFC
void CBCGPChartBoxPlotSeries::SetCustomOffsetPercent ( int  nOffset,
BOOL  bSet = TRUE 

Specifies custom offset from the center of a major unit.

If you don't specify a custom offset the size and position of all boxes within a major unit is calculated automatically and based on the number of series displayed on an axis and the size of diagram area.

Custom size and position allow you specify the desired size and alignment and are not limited by major unit size ( can offset a column/bar by more than 100% and set custom size more than 100%).

nOffsetSpecifies a custom offset in percents from the major unit size.
bSetTRUE - enable custom offset calculation, FALSE - disable custom offset calculation.