To download device profiles from the online library to the local library, select the desired devices and drag them to the Local Library panel.

By default, Device Central connects to the online library every time you launch it. If you have been working offline, you can connect to the online library by selecting Devices > Connect Online Library. You can change preferences to connect to the online library every time you open Device Central or not.

To disconnect from the online library, select Devices > Disconnect Online Library. From time to time, make sure that you have the latest updates from the online library by clicking the refresh button . See Automatically connect to online library on launch.