It would be nice to handle editor template directly in the grid's configuration. Very often we have to use a simple custom editor but we end up creating a new file every time.

Html.Kendo().Grid<Model>()
.Columns(cols=>
{
    cols.Bound(m=>m.SomeProp)
        .EditorTemplate(@<div>
            Html.Kendo().ComboBoxFor(m=>m) [...]
        </div>);
})