# Designer Interface Reference

The following designers can be invoked from the Portal Designer

- Property Set Designer (Use to edit Session, Request, Events, and Catalog Structure objects.)
- User Segment Designer
- Portal Placeholder Designer
- Discount Designer
- Campaign Designer
- Content Selector Designer

Related Topics

To learn more about WebLogic Portal, the tools and services it provides, and surfacing your applications in a portal interface, see the following topics:

WebLogic Portal Overview

Developing Portal Applications