I would have thought that Parental Control would be where you want to look. It appears to say that you can set up 1 or more block or allow rules for 1 or more selected devices and limit access by blocking 1 or more websites by url using scheduled allow or disallow times.
It says
| Parental Control |
The Router provides basic Parental Controls that allow you to create a list of website addresses and keywords embedded in website addresses that will limit the computer user's Internet access. Simply follow the 3 Steps below and click the Apply button to set up your Parental Controls.