Customize User Interface to Reflect User Role and Experience
Using the user interface personalization you can customize the menus and even particular dialogs for chosen user roles.
You can also allow users to see only part of the website they are responsible for in the content tree (for example only the news section) and hide documents they are not allowed to read.
Customize the WYSIWYG Editor Toolbar
You can also choose which toolbar buttons should be displayed in the WYSIWYG editor and eliminate features that could break the design, such as text background color or font type.
Integrate Custom Modules into Kentico UI
UI Personalization allows you to add your own items into Kentico menus and seamlessly integrate your own modules and features into the Kentico. Since you don't modify the code, your customizations will survive future upgrades of the system.