Comment heading styles are very useful for breaking up large chunks of code with high-level comments.
Comment Heading styles are specified with a //n comment, where n is a number between 1 and 4. For example:
//1 This is a Heading 1 comment //2 This is a Heading 2 comment
When the comment displays, the //n at the beginning of the comment is hidden, unless the cursor is on that line.
If the cursor is on the line, then the //n will appear so that you can edit it.