   <td colspan="2"><span parent="addNodeMode" class="right-caret" id="method_addNodeMode"></span> addNodeMode()</td>
            </tr>
            <tr class="hidden" parent="addNodeMode">
                <td class="midMethods">Returns: none</td>
                <td>Go into addNode mode. Having edit mode or manipulation enabled is not required. To get out of this
                    mode,
                    call <code>disableEditMode()</code>. The callback functions defined in <code>handlerFunctions</code>
