selectable String (default: "single")

By default user is able to select a single date. The property can also be set to "multiple" in order the multiple date selection to be enabled. More information about multiple selection can be found in the Selection article.

Example - enable the multiple selection

<div id="calendar"></div>
<script>
    $("#calendar").kendoCalendar({
        selectable: "multiple"
    });
</script>

Check Selection for a live demo.