More about Kendo UI
How to use, demo etc.
Please refer to Kendo UI web site. We only integrated the solution by Telerik into Joomla!
There is just one. You can't load more than five localized UI for calendars etc. It was a necessary compromisis. Giving the option to load more would basically kill the usability of the plugin. If anyone needs more, he/she could fix it himself/herself (if you need more, it is obvious that you would probably need to have some knowledge in PHP/XML).