Customizing the metamodel > Metamodel graphical editor > Enabling the metamodel object
  
Enabling the metamodel object
1 Click Tools > Customize Method Support.
2 In the System Architect Property Configuration dialog, click Advanced to open the advanced Configure Property Set window.
3 In the Configure Property Set window, on the bottom left list of Available Property Sets, find, select, and add the Meta Model Objects choice to the list of Selected Property Sets on the right.
4 Click OK to close the dialogs, and then reopen the encyclopedia for the changes to take effect.
Result
This graphic is described in the surrounding text.
See also
Metamodel graphical editor