To remove a push button:

  1.  Choose Customize Buttons...  from the Options menu on the main
      window.  The Customize dialog box appears

  2.  Click on the push button in the control panel of the Customize
      dialog box.

  3.  Click on Remove.  The push button is removed from the control panel
      within the dialog box.

  4.  Click on OK.  The push button is removed from the push button view
      in the main window.