[amibroker] How to add all the scan symbols to the watchlist? Again please!!!

["kookpangpond" <kookpangpond@xxxxxxxxx>]

Please help me for AFL code.

I want to add ALL the pass-scanned Symbols(in condition that the range 
I scan more than one day).But the code below just add the symbols that 
was fit the scan criteria on the last day only.Please help me correct 
the code.

regards
..........................

Line=ma(c,20)  
Buy=Cross(C,line);
Sell=Cross(line,C);

//Clear Watchlist
CategoryRemoveSymbol( "", categoryWatchlist, 7 );

//Sent result to Watchlist
if( LastValue( Buy OR Sell) )
{
CategoryAddSymbol( "", categoryWatchlist, 7 );
}




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