Hello,
If you're talking about the actual one at the top of the screen, I'm not sure where that is located.
If you're talking about how to put one into a post, I had to create a custom BB Code. It's rough, because I couldn't figure how to create the actual tag as a single tag like it should be for horizontal rules. Normal horizontal rule BB Code is [hr], in HTML it's <hr>.
I've attached a screenie of my code. Again, it's rough but it works and it's moderately customizable.
Examples...
For a full HR line, type [line]100%[/line]
For a partial line that is centered, [line]65% align=center[/line].
Hope it works for you or someone else...
I seem to be having issues getting the screenshot large enough for anyone to read the text in the boxes so here it is...
Code:
Title: Horizontal Line
Replacement: <hr noshade width={param} size=1 color=gray align={param}>
Example: [line]75%[/line] (Note: or 100% for full width, etc.)
Description: Adds horizontal line. Replace 100% with the width you wish the line to be, example, for a shorter line use [line]75%[/line]
Alisa