forEach as a inner loop in outer template/model loop

<?xml version="1.0" encoding="UTF-8"?>


<zk>
    <zscript><![CDATA[
        ListModel lm= new ListModelList();
        
        Object[] data= new Object[2];
        data[0]= "Today"; 
        data[1]= new String[] { "RE: Bandbox Autocomplete Problem",
				"RE: It's not possible to navigate a listbox' ite",
				"RE: FileUpload" };
        lm.add(data);
        
        data= new Object[2];
        data[0]= "Yesterday"; 
        data[1]= new String[] { "RE: Opening more than one new browser window",
				"RE: SelectedItemConverter Question" };
        lm.add(data);

        data= new Object[2];
        data[0]= "Last Week"; 
        data[1]= new String[] { "RE: Times_Series Chart help",
				"RE: SelectedItemConverter Question" };
        lm.add(data);

        class VM
        {
            public ListModel getListModel()		{ return lm; } 
        }
	]]></zscript>

	<window id="win" title="Window ZK6 bind and inner forEach" border="normal" width="600px" 
    		apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('VM')" >    		    	
		<listbox model="@bind(vm.listModel)">
		   <template name="model">
		      <listitem>
		      	<listcell label="@load(each[0])"/>
		      	<listcell>
                    <vlayout>
                    <zk forEach="${each[1]}">
                        <label value="${each}"/>
                    </zk>
                    </vlayout>
		      	</listcell>
		      </listitem>
		   </template>
		</listbox>
    </window>

    <window id="win_2" title="old Style forEach" border="normal" width="600px">    		    	
		<listbox forEach="${lm}">
		      <listitem>
		      	<listcell label="${each[0]}"/>
		      	<listcell>
                    <vlayout>
                    <zk forEach="${each[1]}">
                        <label value="${each}"/>
                    </zk>
                    </vlayout>
		      	</listcell>
		      </listitem>
		</listbox>
    </window>

</zk>