EE Smart Hub

Is there any way to make an alternative SSID with 5GHz only in the router settings? It seems I can only adjust my ‘Main WiFi’ settings, I’m able to turn off 2.4GHz & keep 5GHz on my ‘Main WiFi’ but not able to make an separate band (SSID) with 5GHz only and keep my ‘Main Wifi’ on 2.4GHz.