Using popup menu with tree

      <menu:flexMenu id="flexMenu1" varName="flexMenu1Var" binding="#{FlexMenuManagedBean.popupFlexMenu}"/>

      <tree:tree id="frameWorkContent" varName="frameWorkContent" serverSideAction="true"

                 defaultTreeStyleClass="defaultTreeStyleClass"      useMetaModel="true"

                 defaultTreeItemStyleClass="defaultTreeItemStyleClass"

                 highlightTreeItemStyleClass="highlightTreeItemStyleClass"

                 userOnContextMenu="window.flexMenu1Var">

          <tree:treeData model="#{TreeManagedBean.dataModel}"/>

          <tree:treeSelection model="#{TreeManagedBean.selectionModel}"/>

      </tree:tree>