This is the first time that I have tried to use relative performance.  I have attached a chart of the  Built in Amibroker code BELOW that plots QLD vs QID. 
Hopefully, there is some way that I can plot QLD vs QID in a several different CUSTOM windows. Each of these custom indicators would show all 8 lines of a CUSTOM INDICATOR THAT I HAVE DEVELOPED.  
I would like to have the ability to have THREE different custom indicator chart panes that will show below my builtin candle chart. 
I will always keep an Amibroker builtin candle chart displayed on top of the three desired custom indicator windows.  
So, here is what I would like to display. 
The top chart would be the builtin candle chart, hopefully showing BOTH, the QLD and
 QID  candles. The second chart would be the 8 CUSTOM INDICATOR LINES  showing BOTH QLD and QID.  The third CUSTOM INDICATOR chart window would show the 8 lines for QLD only, and the fourth custom indicator would show the 8 lines for QID only. 
I would appreciate hearing comments regarding the feasibility of this?  Ron D.
// Built-in relative performance chart 
_N( TickerList = ParamStr("Tickers", "QID") ); 
NumBars = 20; 
fvb = Status("firstvisiblebar"); 
Plot( 100 * ( C - C[ fvb ] ) / C[ fvb ], Name(), colorGreen ); 
for( i = 0; ( symbol = StrExtract( TickerList, i ) ) != ""; i++ ) 
{ 
  fc = Foreign( symbol, "C" ); 
  if( ! IsNull( fc[ 0 ] ) ) 
  { 
     Plot( 100 * ( fc - fc[ fvb ] )/ fc[ fvb ],
 
                    symbol, 
          colorBlue + ( (2*i) % 15 ),
          styleLine ); 
  } 
} 
PlotGrid( 0, colorYellow ); 
_N( Title = "{{NAME}} - Relative Performance [%]: {{VALUES}}" );