You can create an attribute group from the Browser or Model menu. Attribute groups are created at the model root to be referenced by other elements.
You can create an attribute group in any of the following ways:
To reference an attribute group, open the property sheet of an element, complex type, or attribute group, click the Attributes tab, and then click the Add Group with Reference to Group tool (see Element Properties).
For general information about creating objects, see Core Features Guide > Modeling with PowerDesigner > Objects.