How to flush an existing data from a grid placed on level 2

Local Rowset &rsLvl1, &rsLvl2;

/* Get Level 1 Rowset */
&rsLvl1 = GetLevel0()(1).GetRowset(Scroll.XXX1); /* Gets the current row of Level 0. */

For &i = 1 To &rsLvl1.ActiveRowCount
 
   /* Get Level 2 Rowset */
   &rsLvl2 = &rsLvl1(&i).GetRowset(Scroll.XXX2);
 
   /* Flush Record */
   &rsLvl2.Flush();
   /* Select Record */
   &rsLvl2.Select(Record.XXX2, "WHERE TERM = :1", &rsLvl1.GetRow(&i).XXX1.STRM.Value);
 
End-For;