I need some suggestions regarding drawing multiple histograms on the same pad in
ROME.
Here is what I have been doing.  I am making a summary histogram online dispaly
with ARGUS. The displays is gonna show multiple different types of histograms. 

So I made a module with four different types of histograms all on the same canvas,
so that I can look at them in real time in an online run.

Now in one of the histograms, I am looping over multiple banks, so in one of the
pads, I want to see two different lines of different colors (to indicate two
different histograms of the same type from two banks). 
So I used histoGUI.xml (from examples/histoGUI) and used this way of histogram
and tab declarations:
  <Tasks>
                <Task>
                        <TaskName>FillHisto</TaskName>
        <Histogram>
                                <HistName>h1_Esum</HistName>


                                <HistArraySize>2</HistArraySize>
                                <HistFolderName>myhistos</HistFolderName>
                                <HistType>TH1F</HistType>

                                <HistXLabel>ESum</HistXLabel>
                                <HistYLabel>Entries</HistYLabel>
                                <HistXNbins>300</HistXNbins>
                                <HistXmin>0</HistXmin>
                                <HistXmax>3.1</HistXmax>
</Histogram>               




<Histogram>
                                <HistName>h1_amplitude</HistName>
                                <HistFolderName>myotherhistos</HistFolderName>
                                 <HistArraySize>108</HistArraySize>


                                <HistType>TH1F</HistType>
                                <HistXLabel>Amplitude</HistXLabel>
                                <HistYLabel>Entries</HistYLabel>
                                <HistXNbins>4096</HistXNbins>
                                <HistXmin>-0.5</HistXmin>
                                <HistXmax>4095.5</HistXmax>
                                <Argus>
                                        <Tab>
                                                <TabName>GeneratedHisto</TabName>
                                              
<ObjectArrayIndex>0</ObjectArrayIndex>

                                                <Index>1</Index>
                                        </Tab>
                                </Argus>
                        </Histogram>

etc. and two other histograms have been defined in the same way.

And then in the src/task: HGUITFillHisto.cpp
I added this: (to draw two histograms on the same pad)

          if(icalo==1)
            {
          Geth1_EsumAt(0)->Fill(0.00009118*sum);

          Geth1_EsumAt(0)->SetLineColor(3);

             }

          Geth1_EsumAt(0)->Draw();

          if(icalo==2)
            {
          Geth1_EsumAt(1)->Fill(0.00009118*sum);

            }

          Geth1_EsumAt(1)->Draw("same");

And attached is the screen shot from ARGUS.

Now the problem is: when I add the Draw() and Draw("same") codes in the src/task
code, it always creates two copies of the same pad. The 0th pad and the very last
pad. So what ever is on the last pad in the attachment is being replaced by the
same copy of the 0th pad. I kept chaning the Index number in histoGUI.xml, but what
ever I do, if I try to draw two histograms on the same pad and add those codes in
the srdc/task .cpp file, it always creates two copies.

I don't know where to look at to fix the problem.

Is there any other way I can add multiple histograms on a pad, while keeping the
other pads on the canvas intact?

Any help on this issue will be much appreciated.