If you no longer need one of your system connections, you can delete it permanently from the CICS® Explorer.
If you selected the wrong connection or change your mind, you can cancel the process at any time by clicking Cancel to restore the connection and close the Connections Preferences view without saving any changes.
Clicking Apply or OK deletes the connection permanently and closes the Connections Preferences view. If the connection you delete is your current connection, the connection state becomes "Not connected" and the resources are no longer displayed in the workbench.