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If you don’t want both the features and only one, Jay has created 3 setup which you can use.Task bar Overlord Executable are available separately for Left and Middle Click., Left Click Only and Middle Click Only. So that’s all about it and here is nice option.

When you Left click on the group of icons it displays the last used windows. New feature to set a texture for the Taskbar and Start Menu for Windows 7, 8, 10 Settings to set taskbar color and transparency for Windows 7, 8, 10 Metro Settings in search results have a 'Pin to Start Menu' right-click command New Explorer toolbar commands to toggle hidden files, system files, file extensions, open Folder Options and create.

This AutoHotKey script overrides the above behavior of the default taskbar properties. Now if you click on the group icon it gives you a preview of all the window and option to close them. Multiple Tabs or Multiple Windows in Chat, Taskbar groups all of them. When you open lot of windows of same type e.g. Windows 7Taskbar ( Superbar) can be used in many ways Pinning the icons and folders is one of them and if you right click you get options available which is either mentioned by website, in case of Explorer, or applications.

Windows 7 taskbar texture