Hi,
It will be a good addition to the component if the ability to disable dates is added like the disabledDates input of the DatePicker or jQuery DateRangePicker widget.
Currently is not possible to focus the End DateInput, using keyboard shortcuts.
So far the Tab focuses the first input which automatically opens the popup then continues on the next focusable elements on the page skipping the End input.
This is not correct in terms of another component that has a popup in it. The popup should be opened on Alt+Down arrow, while the Tab should go through the Start and End DateInputs fields only.
Please improve and provide built-in keyboard navigation shortcuts for the DateRange component.