MikroTik license registration

At level1 MikroTik console I can see:

UPGRADE NOW FOR FULL SUPPORT

FULL SUPPORT benefits:

  • receive technical support
  • one year feature support
  • free software upgrades
    (avoid re-installation and re-configuring your router)
    To upgrade, register your license “software ID”
    on our account server http://www.mikrotik.com

Where register that “software ID”? I can’t see that opion after login to my MikroTik account.