Thank you for contacting us.
We are currently implementing "Runtime Schema Changes", which would satisfy your requirement. Since it is scheduled for our Q3 release later in the year, we ask you for your patience.
If you would be interested in a pre-release version, we might be able and consider to provide you something in Summer. In this case, please submit a support ticket asking for such.
Please do not hesitate to contact us for any further question.
the Telerik team