Cent features are almost complete..

[Lichtenshtein]

Another function is to add your web panel. With its help, you can actually split the screen into two. Open chats in it, etc. Not without flaws. For example, you can not align each page from both sides to the width of the screen, you have to scroll them with bottom scroll bar. There's no way to open the link FROM the left panel on the right side of the screen - the link opens either IN THE LEFT panel when you click the link normally or in the background tab when you click middle mouse button. Such a function would be useful for viewing some lists in the left panel. You click on the link in the list with some shortcut pressed and it opens to the right, click the next and same.

Huh, Whale browser did it. Video.