How do you build a cricket roof?

Can anyone point me to where I can find how to build a Criket roof in the Valley of an existing roof
I'm using ver X1

I would place all planes manually.

Start by putting a roof plane at the lowest point or baseline where the two roofs meet, change the pitch to 1/4" and roof material. Then adjust the high point where it meets a wall or another roof, its simple if you can follow this. a video would be better, I'm video challenged.

Video Explanation: http://indyblueprints.com/Free.aspx

Very good video Allen Thanks