What or who makes the changes of your technical indicators if you check the square box??, example: "Allow DDL export" "Allow external expert imports" "Allow modifications of signals settings"

 

What or who makes the changes of your technical indicators if you check the square box??, example: (A) "Allow DDL export"  (B) "Allow external expert imports"  (C) "Allow modifications of signals setting"

Whening adding a indicator to my chart the following options are available if you check the box, if you check the box who makes the changes?  Is it a Account Manager of the Broker or is it done by a computer?  How are the changes made?

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