Extending the tool bar of New Calendar Entry

HCL Domino Domino Forum
1

I want to add an action by extending the tool bar of New Calendar Entry using a plug-in. (Domino 8.0.1), To extend the tool bar, I need to know its ID. I think this ID might be an ID used in in plugin.xml, like:

  <actionSetPartAssociation targetID="my_action_set_id"> 

      <part id="the_id_of_the_toolbar_I_want_to_extend_but_I_do_not_know"/> 

  </actionSetPartAssociation>

Any help is appreciated for this id?