Asuswrt: Schedule 2.4GHz Main Wi-Fi to Turn Off but Keep Guest Network Active

[Klonoa]

Hi everyone, I want to schedule the 2.4GHz main Wi-Fi to automatically turn off during certain hours. However, I noticed that when the scheduled time comes, not only the main network shuts down, but the Guest network also gets disabled.
My goal is: turn off the main 2.4GHz Wi-Fi while keeping the Guest network running.

Does anyone know how to configure this so that only the main Wi-Fi turns off without affecting the Guest network? Any tips or advice would be greatly appreciated.