Configuring the Menu and Toolbar of the Perspective
  You can choose which entries are displayed in the menu and toolbar of a perspective. Making an entry unavailable
  in a perspective removes these methods of running commands. You have different tabs to configure the menu and toolbar
  entries as well as entries contributed via (the deprecated) action sets and the shortcuts available in the New, Show
  View and Show Perspective menu entries.
  To configure the perspective:
  
    - Switch to the perspective that you want to configure.
- Select  Window > Perspective > Customize
    Perspective.... Window > Perspective > Customize
    Perspective....
- Open the Command Groups Availability tab.
- Select the tab which you want to configure.
- Use the check box to make it available or unavailable.
- Click OK to cause the changes to take effect.
Perspectives
  Changing where perspectives open
  Specifying the default perspective
  Saving a user defined perspective