In essence, at this time of the hour, Sogou Browser 2015 is not selected "multiple window mode" this option. But there are other ways to replace it, and the following are some of the ways that we want to help.
One is to use the new window mode.
1, click to open the File menu, you can see the first option is "New Window":
2, the new window is also considered a multi-window mode:
The second is to use shortcut keys to create a new window.
You can create a new window by using the Ctrl+m shortcut key, which you can find by looking at the letters on the back of the new window in the File menu that you just opened:
The third is to drag the page directly.
1, open more than the label page, in the page you want to open as a multiple window tab, the mouse clicks to the label, and then hold down the left mouse button directly drag:
2, this also can form the effect of multi-window mode:
So there is no single multi-window model in the Sogou browser, only through the above mentioned several methods of indirect formation of multiple window mode.