Razor Edit - Timeline track view

I upgraded 14 public beta to 14 Studio, hurray, well one problem I just can't solve, in 14pb when I selected the razor edit tool it would show in the viewer what was under the razor video track 1 or two, even with the top track view off. Great for quick cuts using two cameras, for me better than multicam, but I can't find how to 'switch it on' ! Thanks in advance for any help, I'll struggle on with gang view and occasional searches in the pdf help, wondering if that could webized like 3Dmax's help.