SMART datagrid v.1 > Classes > ColumnGroup
If Column specified by parameter column is being included in this column group and displayIndex of column is different from parameter newIndex, it will change the display location of column as newIndex.
var col = grid.focusedIndex().columm();
if (col && col.group()) {
col.group().setVisibleIndex(col, col.displayIndex() + 1);
}