Upgrade my Indicator

1) The indicator executes its alogo and ALL hits are written to the Output File.

2) Currently, the Scanner overwrites the content with the new results to the output file.

5) The change, I want:-
5.1) the original content not to be overwritten
5.2) Only the new HITS that are not already held in the Output file to be concatenteated to the end of the line
5.33) The Ouput File will only have a single line -- delimited by "/n"

6) Example:-
- New Symbol hit "EURGBP;SP500" ---- New symbols must be added at the end.
- All symbols must be on a single line
- No duplication
- All symbols delimited by ";"
- Last symbol must be #S-BIDU
- Last symbol has no delimiter.


6.1) Old line:- XAGUSD;SP500;Nd100;XAUUSD;#S-BIDu
6.2) New line:- XAGUSD;SP500;Nd100;XAUUSD;EURGBP;#S-BIDU