How to exclude top 2 or 3 results from scan

Hi,
I was able to learn a lot from the forum and google. Am not a techie person - so get lost easily.

I am trying to exclude a few top results from scan results. Google search came up with http://www.amibroker.com/kb/2014/10/23/how-to-exclude-top-ranked-symbols-in-rotational-backtest/
but dont understand it enough to make it applicable to my situation.
I do not use a positionscore variable.

`
SetOption("SettlementDelay", 1);
Buy = ( 	Open  >= 1 ) AND
MACD (12,26) > Signal (12,26,9)
AND MACD( 12, 26 ) < 0 
AND (MA(Volume, 50)* MA(Close, 50)) > 2000000 
;

Sell = 0; 

Short = 0;

Cover = 0;

When i backtest, i get only tickers starting with the letter A. Scan shows that there are a lot of potential tickers for each day.
I realized that in the absence of positionscore variable, it will sort it alphabetically according to this article.
http://www.amibroker.com/kb/2015/09/28/symbol-selection-when-positionscore-is-not-defined/

Is there a simple way for me to choose the 4th or the 10th or nth ticker for each day to be used for the backtest. Some way to incorporate the sorted results of the scan ?

Thanks

Ranking. Read this a few times if you need to.

In your case SetSortColumns() https://www.amibroker.com/f?setsortcolumns function would be easiest solution.