Connecting Attributes to a MetaClass
An attribute can be connected to one or several diagrams. The "Name" attribute is connected to all MetaClasses.
To connect an attribute to a MetaClass:
1. In the Properties window of the MetaClass, select the MetaAttribute tab.
2. Click
Connect 
and select the MetaAttribute you want to connect.
You can select several MetaAttributes.
3. Click Connect.
The selected MetaAttributes appear in the list of MetaAttributes of the MetaClass.