in _InitializeLayout(object sender, InitializeLayoutEventArgs e) event, i am adding manually 2 summary rows. here is the code:

SummaryPosition usp = SummaryPosition.UseSummaryPositionColumn;

SummaryDisplayAreas s = SummaryDisplayAreas.BottomFixed;

sum_C_Line1= e.Layout.Bands[0].Summaries.Add("X_TOTAL1", SummaryType.Custom, new IMSCC(),  e.Layout.Bands[0].Columns["Column1"], usp, e.Layout.Bands[0].Columns["Column1"]);

sum_C_Line1.SummaryDisplayArea = s;

sum_C_Line2= e.Layout.Bands[0].Summaries.Add("X2_TOTAL1", SummaryType.Custom, new IMSCC(),  e.Layout.Bands[0].Columns["Column1"], usp, e.Layout.Bands[0].Columns["Column1"]);

sum_C_Line2.SummaryDisplayArea = s;

My questions are :

1- How can i change place of that summary rows ? I want summary row 1 to display over summary row 2.

2- How can i write some explanations on cells left of that summary columns on summart rows ?

(Please see attach picture for better understanding. )