In such case our advice would be to set the RotatorType property to "FromCode" and to change the items by using the Client-Side API.
If you still experience problems with this, please open a support ticket and send us a small project along with a screencaptured movie where we can see what exactly are your requirements. Once we have a better view over them, we will be able to provide you with the appropriate suggestions.
the Telerik team
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