is a variable defined in `
Its value is
- Automatically becomes buffer-local when set.
- This variable is safe as a file local variable if its value
satisfies the predicate `string-or-null-p'.
String designating bullet of topics that have auto-numbering; nil for none.
Topics having this bullet have automatic maintenance of a sibling
sequence-number tacked on, just after the bullet. Conventionally set
to "#", you can set it to a bullet of your choice. A nil value
disables numbering maintenance.
You can customize this variable.