You
can change the zoom level in an open UML diagram. With a higher zoom level,
you can see a diagram in more detail. A lower zoom level is helpful for large
diagrams so that you can see a larger area of a diagram. You can change the
animation effects for zoom levels by modifying the preferences for UML diagrams.
To change the zoom level of a UML diagram, click and click a zoom level.
The diagram is resized in the diagram editor according to the zoom
level that you select.