The source code

    Ext.onReady(function(){

        var SamplePanel = Ext.extend(Ext.Panel, {
            width: 500,
            height:250,
            style: 'margin-top:15px',
            bodyStyle: 'padding:10px',
            renderTo: 'docbody',
            html: Ext.example.shortBogusMarkup,
            autoScroll: true
        });

        new SamplePanel({
            title: 'Standard',
            tbar: [{
                xtype:'splitbutton',
                text: 'Menu Button',
                iconCls: 'add16',
                menu: [{text: 'Menu Button 1'}]
            },'-',{
                xtype:'splitbutton',
                text: 'Cut',
                iconCls: 'add16',
                menu: [{text: 'Cut Menu Item'}]
            },{
                text: 'Copy',
                iconCls: 'add16'
            },{
                text: 'Paste',
                iconCls: 'add16',
                menu: [{text: 'Paste Menu Item'}]
            },'-',{
                text: 'Format',
                iconCls: 'add16'
            }]
        });

        new SamplePanel({
            title: 'Multi columns',
            tbar: [{
                xtype: 'buttongroup',
                title: 'Clipboard',
                columns: 2,
                defaults: {
                    scale: 'small'
                },
                items: [{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    iconCls: 'add16',
                    menu: [{text: 'Menu Item 1'}]
                },{
                    xtype:'splitbutton',
                    text: 'Cut',
                    iconCls: 'add16',
                    menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy',
                    iconCls: 'add16'
                },{
                    text: 'Paste',
                    iconCls: 'add16',
                    menu: [{text: 'Paste Menu Item'}]
                },{
                    text: 'Format',
                    iconCls: 'add16'
                }]
            },{
                xtype: 'buttongroup',
                title: 'Other Bugus Actions',
                columns: 2,
                defaults: {
                    scale: 'small'
                },
                items: [{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    iconCls: 'add16',
                    menu: [{text: 'Menu Button 1'}]
                },{
                    xtype:'splitbutton',
                    text: 'Cut',
                    iconCls: 'add16',
                    menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy',
                    iconCls: 'add16'
                },{
                    text: 'Paste',
                    iconCls: 'add16',
                    menu: [{text: 'Paste Menu Item'}]
                },{
                    text: 'Format',
                    iconCls: 'add16'
                }]
            }]
        });

        new SamplePanel({
            title: 'Multi columns (No titles, double stack)',
            tbar: [{
                xtype: 'buttongroup',
                columns: 3,
                defaults: {
                    scale: 'small'
                },
                items: [{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    iconCls: 'add16',
                    menu: [{text: 'Menu Item 1'}]
                },{
                    xtype:'splitbutton',
                    text: 'Cut',
                    iconCls: 'add16',
                    menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy',
                    iconCls: 'add16'
                },{
                    text: 'Paste',
                    iconCls: 'add16',
                    menu: [{text: 'Paste Menu Item'}]
                },{
                    text: 'Format',
                    iconCls: 'add16'
                }]
            },{
                xtype: 'buttongroup',
                columns: 3,
                defaults: {
                    scale: 'small'
                },
                items: [{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    iconCls: 'add16',
                    menu: [{text: 'Menu Item 1'}]
                },{
                    xtype:'splitbutton',
                    text: 'Cut',
                    iconCls: 'add16',
                    menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy',
                    iconCls: 'add16'
                },{
                    text: 'Paste',
                    iconCls: 'add16',
                    menu: [{text: 'Paste Menu Item'}]
                },{
                    text: 'Format',
                    iconCls: 'add16'
                }]
            }]
        });

        new SamplePanel({
            title: 'Mix and match icon sizes to create a huge unusable toolbar',
            tbar: [{
                xtype: 'buttongroup',
                columns: 3,
                title: 'Clipboard',
                items: [{
                    text: 'Paste',
                    scale: 'large',
                    rowspan: 3, iconCls: 'add',
                    iconAlign: 'top',
                    cls: 'x-btn-as-arrow'
                },{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    scale: 'large',
                    rowspan: 3,
                    iconCls: 'add',
                    iconAlign: 'top',
                    arrowAlign:'bottom',
                    menu: [{text: 'Menu Item 1'}]
                },{
                    xtype:'splitbutton', text: 'Cut', iconCls: 'add16', menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy', iconCls: 'add16'
                },{
                    text: 'Format', iconCls: 'add16'
                }]
            },{
                xtype: 'buttongroup',
                columns: 3,
                title: 'Other Actions',
                items: [{
                    text: 'Paste',
                    scale: 'large',
                    rowspan: 3, iconCls: 'add',
                    iconAlign: 'top',
                    cls: 'x-btn-as-arrow'
                },{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    scale: 'large',
                    rowspan: 3,
                    iconCls: 'add',
                    iconAlign: 'top',
                    arrowAlign:'bottom',
                    menu: [{text: 'Menu Button 1'}]
                },{
                    xtype:'splitbutton', text: 'Cut', iconCls: 'add16', menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy', iconCls: 'add16'
                },{
                    text: 'Format', iconCls: 'add16'
                }]
            }]
        });

        new SamplePanel({
            title: 'Medium icons, arrows to the bottom',
            tbar: [{
                xtype: 'buttongroup',
                title: 'Clipboard',
                defaults: {
                    scale: 'medium',
                    iconAlign:'top'
                },
                items: [{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    iconCls: 'add24',
                    arrowAlign:'bottom',
                    menu: [{text: 'Menu Item 1'}]
                },{
                    xtype:'splitbutton',
                    text: 'Cut',
                    iconCls: 'add24',
                    arrowAlign:'bottom',
                    menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy',
                    iconCls: 'add24',
                    cls: 'x-btn-as-arrow'
                },{
                    text: 'Paste',
                    iconCls: 'add24',
                    arrowAlign:'bottom',
                    menu: [{text: 'Paste Menu Item'}]
                },{
                    text: 'Format
    Stuff',
                    iconCls: 'add24'
                }]
            },{
                xtype: 'buttongroup',
                title: 'Other Bogus Actions',
                defaults: {
                    scale: 'medium',
                    iconAlign:'top'
                },
                items: [{
                    xtype:'splitbutton',
                    text: 'Menu Button',
                    iconCls: 'add24',
                    arrowAlign:'bottom',
                    menu: [{text: 'Menu Item 1'}]
                },{
                    xtype:'splitbutton',
                    text: 'Cut',
                    iconCls: 'add24',
                    arrowAlign:'bottom',
                    menu: [{text: 'Cut Menu Item'}]
                },{
                    text: 'Copy',
                    iconCls: 'add24',
                    cls: 'x-btn-as-arrow'
                },{
                    text: 'Paste',
                    iconCls: 'add24',
                    arrowAlign:'bottom',
                    menu: [{text: 'Paste Menu Item'}]
                },{
                    text: 'Format',
                    iconCls: 'add24',
                    cls: 'x-btn-as-arrow'
                }]
            }]
        });

        new SamplePanel({
            title: 'Medium icons, text and arrows to the left',
            tbar: [{
                xtype:'buttongroup',
                items: [{
                    text: 'Cut',
                    iconCls: 'add24',
                    scale: 'medium'
                },{
                    text: 'Copy',
                    iconCls: 'add24',
                    scale: 'medium'
                },{
                    text: 'Paste',
                    iconCls: 'add24',
                    scale: 'medium',
                    menu: [{text: 'Paste Menu Item'}]
                }]
            }, {
                xtype:'buttongroup',
                items: [{
                    text: 'Format',
                    iconCls: 'add24',
                    scale: 'medium'
                }]
            }]
        });

        new SamplePanel({
            title: 'Small icons, text and arrows to the left',
            tbar: [{
                xtype:'buttongroup',
                items: [{
                    text: 'Cut',
                    iconCls: 'add16',
                    scale: 'small'
                },{
                    text: 'Copy',
                    iconCls: 'add16',
                    scale: 'small'
                },{
                    text: 'Paste',
                    iconCls: 'add16',
                    scale: 'small',
                    menu: [{text: 'Paste Menu Item'}]
                }]
            }, {
                xtype:'buttongroup',
                items: [{
                    text: 'Format',
                    iconCls: 'add16',
                    scale: 'small'
                }]
            }]
        });

    });