Unlike the other columns, GridTemplateColumn was designed to provide the freedom for the developer to implement his own custom controls/methods. Nevertheless, you can submit a feature request in our Telerik Ajax Feedback and Ideas portal
. There you can include the scope of the feature, how it should be controlled, example business cases, everything you find relevant. This will let the community evaluate, comment and vote on the idea. If it becomes popular, management will prioritize its implementation.