For MgCamd emulator:
1. Start DCC
2. Select FTP
3. Find usr\keys\newcamd.list
4. Edit it
5. If you need to add some line(s) to the existing one(s), just copy CWS line from the billing (My subscription), Settings for MgCamd emulator, and paste it to newcamd.list file. If you need to replace the existing line, just copy CWS line from the billing and paste it by replacing the existing CWS line.
6. Save newcamd.list
7. Exit from DCC
8. Restart emulator