Customize EN X7 interface more like X5

Version X7 has many desirable features, but the user interface is much more complicated (more clicks for common actions) than was X5, thus I downgraded to X5. Is there a way to customize X7 to look more like X5? Most concerned with simple tasks that X5 allows as icons in the top window bar-  Insert citation, Import, New reference, Styles. 

Also, Groups window seems larger than in X5; more information yes, but can that be hidden?