The editor template is
.Editable(e => e.Mode(Kendo.Mvc.UI.GridEditMode.InLine).Enabled(true))
After adding above line in <script id="BenchmarksTemplate" type="text/kendo-tmpl">, it still crashes with message:
"The model item passed into the dictionary is null, but this dictionary requires a non-null model item of type 'System.Int32'."