Is It possible have custom pop-up menu for more than one mailItems in NetOffice

Question

My custom pop-up context menu run only for selection of one mail in my mail-list. Is there posibily to run for more than one mail selection?

<contextMenu idMso="ContextMenuMailItem">
  <menu id="customID" label="CustomPrg" getImage="logo_image2">
    <button id="btn1" onAction="TransferBtns_Click" getLabel="ArchiveLabel" imageMso="CopyToFolder"/>          
    <button id="btn2" onAction="AchivetoBtn_Click" getLabel="ArchiveLabelOp"  imageMso="CopyToFolder"/>
    <menuSeparator id="separatormnu"/>
    <splitButton id="btn3">
</contextMenu>

Answer 1

<contextMenus>    
  <contextMenu idMso="ContextMenuMultipleItems">
    <button id="MyContextMenuMultipleItems"
        label="ContextMenuMultipleItems"
        onAction="OnMyButtonClick"/>
  </contextMenu>  
</contextMenus>

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