Netgear rax20 time schedule

Hi everyone!

Just bought a Netgear AX1800 (rax20) router.

The salesperson said it has the addition to set time schedule to turn off internet for certain devices.

I´ve installed the router and the Nighhawk app but can´t find ANY settings for what I need.

Basically, my son says he turns off his computer at a time we tell him to at night. Many mornings I´ve woken for work and he would still be on it. So I need to set a schedule to block his internet at night time... But HOW do I do this?

I can only find settings to block certain websites or contents..

I would REALLY appreciate some help with this.

//Jennie