For make some operator default you should just change order in filter options:
filterable: {
extra: false,
operators: {
string: {
contains: "Contains"
eq: "Is equal to",
neq: "Is not equal to"
}
}
}
And for focus on text field you can use filterMenueInit Event.
It will look like this for your case:
filterMenuInit: function(e) {
var popup = e.container.data("kendoPopup");
popup.bind("activate", function (e) {
this.element.find("input").focus();
});
}
First you need to select KendoWidget for filter - kendoPopup.
After that you bind function on event which fired after popup is fully load - activate event. And in function you update control state as you need.