How to show 4x repeats?

[Arjan Bos]

Hi list,

Where can I find in the manual how can I show the fact that a volta  
repeat should be played 4 times? The score I'm copying has a  
horizontal bracket over it with the text "4x" in the middle of the  
bracket

Something like:

---------- 4x --------
|:               :|

Thanks,
Arjan
---
They both savoured the strange warm glow of being much more ignorant  
than ordinary people, who were only ignorant of ordinary things.

-- Discworld scientists at work  (Terry Pratchett, Equal Rites)