Separator

Sample Ribbon XML file:

<customUI xmlns="http://schemas.microsoft.com/office/2006/01/customui">
    <ribbon startFromScratch="false">
        <tabs>
            <tab id="MyTab" label="My Tab">
                <group id="MyGroup" label="My Group">
                    <labelControl id="myLabel1" label="Sample:" />
                    <labelControl id="myLabel2" label="Separator" />
                    <separator id="mySeparator1" />
                    <separator id="mySeparator2" />
                    <separator id="mySeparator3" />
                 </group>
            </tab>
       </tabs>
    </ribbon>
</customUI>

Attributes: id, idQ, insertAfterMso, insertAfterQ, insertBeforeMso,
                 insertBeforeQ, visible

 Callbacks: getVisible

You can find this sample in Sample DB 1