Use the Control Center to add systems, instances, and databases to the object tree.
If you install a new computer system or create a new instance and you want to use the Control Center to perform tasks on it, you must add it to the object tree.
If you remove a database, or uncatalog it outside of the Control Center, and you want to use the Control Center to perform tasks on it, you must add it to the object tree.
To add systems, instances, or databases to the object tree:
In the Add window, you can get a list of existing remote systems, instances, or databases by using the Refresh push button.