The Projects explorer finds projects you reference often. By default, it shows your personal projects, the current build management projects, and baselines created in the last 30 days. You can define queries to add other projects of interest, which makes them available for quick reference.
The Tasks explorer finds tasks you frequently need. By default, it shows your assigned tasks as well as tasks you have recently completed. You can define queries to add other tasks of interest, such as tasks other team members have been assigned, and so on.
Additionally, saved queries that return folders display in the Tasks explorer if you add a saved query to an Explorer.
The Releases explorer shows the properties of a release or of a process rule being used by the release. When you select a release, process, process rule, or folder template in the Releases explorer, you can view its properties in the Work pane and change the object.
The Change Requests explorer shows change requests you use frequently. By default, it displays your assigned change requests. You can define queries to add other change requests of interest, such as change requests assigned to other team members, and so on. The Change Requests explorer is available only if you use Rational® Change.