What this step is. TGIF is the second network your hotspot will use. You'll create an account, then copy a security key that TGIF generates for you.
Create your account. Go to tgif.network and register. Use your callsign as the username — not your email address. Sign-ups that use an email as the username get rejected. After you register, click the verification link in the email they send (check your spam folder; give it about 10 minutes).
Copy your security key:
You don't pick this one — the system makes it for you. Unlike the BrandMeister password, TGIF generates a long random key. Just copy it exactly as shown. You'll use it when you set up the hotspot.