Format option for "ferrule"?

I’m starting to doubt my own eyes, here. As I was wandering through some format options in OO 4.6, I saw a format option labeled “ferrule”. Great! That’d allow me to add a line above (or below) major topics, for visual separation. And now I can’t find it anywhere. I only saw it 15 mins ago! And a search in the user guide and in this forum don’t turn up any instances of the word “ferrule”. Was this just an artifact on one screen, of a feature that wasn’t implemented, or does it really exist somewhere?

TIA for any thoughts on this.

I’m afraid I have no idea what is was you saw. I’ve never heard of “ferrule” used in for such an application. Sorry I can’t be of more help.

If I come across it again, I’ll grab a screen capture.