On IB's website they advertise that IBKR Lite is free trading and commissions, but it's noted that they don't allow API connections in comparing Lite vs. Pro.
If the master account has IBKR PRO with API support, can the friends & family open Lite accounts and just receive trading signals from QR's connection to the master?
I.E. If I had 1 master (PRO), 3 sub-accounts (LITE), 1 QR algo. Can I send trades to everyone?