To expand and collapse the object tree, click the plus signs (+) and minus signs (-) next to objects in the object tree.
For example, look at the Systems folder displayed on the object tree. If you click the plus sign (+) next to the Systems folder, icons representing your local workstation and any remote systems connected to your local system are displayed. If you click the plus sign (+) next to a particular system icon, the Instances folder and any instances residing on that system are displayed.
To collapse the object tree to the Systems folder, click the minus sign (-) next to the Systems folder. All of the objects under the Systems folder are no longer displayed.