scope

Used for grouping Draggable and Droppable elements. Draggable elements will be allowed to be dropped inside Droppable elements having the same scope.
The default value is "default".

<div id="div1">Hello DIV!</div>

<div id="div2" style="width:100px; height:100px; border:1px solid black;">
    Drop items here...
</div>

<script type="text/javascript">
    jQuery(function ($) {
        $("#div1").shieldDraggable({
            scope: "divs"
        });

        $("#div2").shieldDroppable({
            scope: "divs"
        });
    });
</script>