bring out stack view in Chrome for Android

I am using a Samsung Galaxy Tab 2 7.0. I cannot bring out stack browsing in Chrome. Although I have got an option for something like tilt scrolling in advanced settings but cannot find it useful any way even after enabling it. What may be the problem? Here are some links for screenshots related to stack tabs:   I cannot find the button which is marked in the second screenshot, Also the browser in my tab looks a lot like the desktop one, with extremely small tabs at the top. Specifically the 'x' button used to close each tab, which is a headache but I use it a lot. It would help me if I manage to get the stack tabs feature.