Hello, 

A couple feature requests...

Clear the built in search box value.

clearSearch - clears the search box

e.g.,

var grid = $("#grid").data("kendoGrid");
grid.clearSearch();

Customize validation text via schema model fields validation.

e.g.,

var grid = $("#grid").data("kendoGrid");
const dataSource = new (<any>self).kendo.data.DataSource({
                data: models,
                schema: {
                    model: {
                        id: "id",
                        fields: {
                            id: { editable: false, nullable: true },
                            modelName: { validation: { required: true, messages: {required: "Model name is a required field"} } },
                            ...