Marking modified lines You can also easily mark modified script parts: Put the cursor in the desired line, or select the desired lines. Right-click and, on the shortcut menu, select Mark as Old. All selected lines are commented out (a pipe symbol [|] appears at the beginning of each line) Behind the first old line a comment is inserted with the following text: " |#<Marker Identifier>.so ". (" so " means Start - Old) Behind the last old line a comment is inserted with the following text: " |#<Marker Identifier>.eo ". (" eo " means End - Old) Note: if you selected only one line, the comment text is: " |#<Marker Identifier>.o ". This figure shows an example: