SMART datagrid v.1 > Classes > ColumnHeader
The location of sub text which is based on Main Text.
It is specified by SubTextLocation constant. If this value is undefined, it will use subTextLocation value of GridHeader.
var header = column.header();
header.setSubTextLocation(DataLudi.SubTextLocation.BOTTOM);
column.setHeader({
subTextLocation : 'top'
});