G36-separating 2.4G & 5G bands

How do I separate 2.4G and 5G networks on G36. I found the following steps on an internet search and tried it. But I cound not find ‘Band Steering’ or “Smart Steering’ anywhere on the page.

• Access the Router: Open a web browser, enter the default gateway IP address (typically 192.168.0.1 or 192.168.1.1), and log in with your credentials.
• Locate Settings: Go to Gateway > Connection > Wi-Fi.
• Disable Band Steering: Look for a "Band Steering" or "Smart Steering" option and turn it off.

Any help/guidance would be greatly appreciated.

David