Toolbar Configurator will be available in each official CKEditor installation package starting from CKEditor 4.5.
Source: http://docs.ckeditor.com/#!/guide/dev_toolbar
When is this new Toolbar Configurator available?
Are there any preview screenshots?
I found another post It was annouced half a year ago: http://ckeditor.com/forums/CKEditor/Where-is-the-Toolbar-Configurator