String columnName = mField.getColumnName();
// Make Yes-No searchable as list
if (mField.getVO().displayType == DisplayType.YesNo)
{
GridFieldVO vo = mField.getVO();
GridFieldVO ynvo = vo.clone(vo.ctx, vo.WindowNo, vo.TabNo, vo.AD_Window_ID, vo.AD_Tab_ID, vo.tabReadOnly);
ynvo.IsDisplayed = true;
ynvo.displayType = DisplayType.List;
ynvo.AD_Reference_Value_ID = AD_REFERENCE_ID_YESNO;
ynvo.lookupInfo = MLookupFactory.getLookupInfo (ynvo.ctx, ynvo.WindowNo, ynvo.AD_Column_ID, ynvo.displayType,