Kendo Grid does not support drag-n-drop reordering out of the box. The example that you found uses KendoUI Drag and Drop component
to achieve similar functionality.
I am not sure if I understood correctly what exactly you would like to achieve. If you want to drag the value of only one column you can make only the corresponding cell draggable or customize the hint
used in the jsFiddle example. For more information please check the Draggable API reference
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