Commenting and Uncommenting Blocks of Code
You can comment or uncomment the current line or selected block of source code.
Commenting feature extends to all supported file types. For the custom file types, you can define line and block comments characters, as described in the section Creating and Registering File Types.
Configuring commenting behavior
If the check boxes are cleared, the comments characters are placed at the current caret position.
Commenting and uncommenting lines of code
Do one of the following:
Commenting and uncommenting blocks of code
To add or remove a block comment, do one of the following: