SetTmp in ax 2012

static void DataDic_SetTmp(Args _args)
{
CustGroup custGroup;
;
custGroup.setTmp();
custGroup.custGroup = "10";
custGroup.name = "Test customer 10";
custGroup.insert();
while select custGroup
{
          info(strFmt("%1, %2", custGroup.custGroup, custGroup.name));
}
}