[amibroker] backtester: how to summarize in 1 row each symbol from a set of 500 symbols

[shakerlr]

I've been trying to summarize the backtest results for 500+ symbols so that I 
can see a summary of the total gain/loss for all trades for each symbol on one 
line.  I don't know if there is a setting to do this, but I have tried the 
summary, show trades, detailed buttons and also the "include tradelist in 
report checkbox" on the report page.  I can't figure out how to do this with 
the current backtester settings.  Is there a way to do this without coding this 
into backtester code?   Also, can I do this with optimization turned on?  ie, 
so I can see ONLY the BEST result for each security in the summary line?

If not, anyone know how I can do this with the backtester code?  I imagine I 
use this code:

    for( trade = bo.GetFirstTrade(); trade; trade = bo.GetNextTrade() )
     {
          // trade variable now holds Trade object

     }

And then get the symbol name, then sum the profit/loss.  But how do I do that?  
Can I use the built in sum() functions to do that (but on what array)?  

Also, if I am using the backtester with the optimizer, how do I determine what 
is the best setting is (I guess the highest profit based on the above method).

Thanks.