quick release button for handle

Hi,
can some one point to a manufacturer that makes a Sony style button for the UMP handle? I really dislike turning the bolt every time i want to lay the camera down.

Wooden camera just announced these Arri rosettes...

http://www.woodencamera.com/push-button-arri-rosettes-s/439.htm

Looking into getting the 4 pack myself.

C.

Yes, this looks like a nice solution, and moves the handle out also.
Cheers

thanks, this looks great?

I'm going to order some of these. Thanks