To retrieve the running or startup configuration from the device, you can use the Configuration->Show running/startup configuration menu commands or the corresponding toolbar buttons. These commands become available only when the user is connected to a device in the privileged mode. You can switch to this mode either using the enable terminal command or automatically by enabling the corresponding option in connection properties. Note that in both cases you should specify the password for switching to the privileged mode.
After you execute the Show running configuration command, you will see a panel with the running device configuration that you can edit. See the Editing the running configuration device section for details.
If you execute the Show startup configuration command, you will see the window with the startup configuration. In this case it is impossible edit the configuration directly. If you need to make changes in the startup configuration of the device, you should modify the running configuration first and then copy it to NVRAM. See the Saving configuration to NVRAM section for additional information.