# Hierachy View

In PyDev you can use F4 to open the hierarchy view for you while over some class definition.

The Hierarchy View allows you to check a class hierarchy, seeing the relations as well as methods and attributes for all the classes in the hierarchy.

After opening the hierarchy view, you can:

- Single-click a class: will show you the class methods
- Double-click a class, method or attribute: will open that definition in the editor.
- Zoom: Right-Click the view and move your mouse left/right
- Pan: Lef-Click the view and move your mouse as you wish