ReNaming Entity Ribbon Button In MSCRM 2011

To hide the entities ribbon buttons form  the  homepage grid and form levels , first we need to check the button  form button id   and grids butt  id from ,
sdk/samplecode/cs/client/ribbon/exportribbonxml/bin/debug/exportedribbonxml/leadribbon

This code shows how to hide Lead entities forms ribbon button and grids ribbon button.
<RibbonDiffXml>
        <CustomActions>
<HideCustomAction Location="Mscrm.HomepageGrid.lead.ConvertLead"  // Button Id
              HideActionId="Mscrm.HomepageGrid.lead.ConvertLead.HideAction" />
    
  <HideCustomAction Location="Mscrm.Form.lead.ConvertLead"   // Button Id
              HideActionId="Mscrm.Form.lead.ConvertLead.HideAction" />   
 </CustomActions>
     ..............
</RibbonDiffXml>