On this tab, you can make UI personalization settings for the WYSIWYG editor toolbar.
The WYSIWYG editor module has many UI elements grouped under several main UI elements. You can display the sub-elements by clicking the icon next to a particular UI element.
UI element names match tooltips displayed when you place your cursor over a particular button in the WYSIWYG editor toolbar.
Page url: http://devnet.kentico.com/docs/5_5r2/contexthelp/index.html?uipersonalization_editor.htm