- Network Tab
- Expert Mode
- System Tab
- Scheduled Tasks
This will put you in the OpenWRT root crontab. You can schedule your reboot here.
BUT there really is not any need for frequent reboots. When you find a version that correctly does all you want, there is not any reason to update it. I am updating 4 weather networks, running 1 ftp & 2 http services, and an occasional shared Weatherlink connection. The memory stays consistently at 89-90% used. The only reboots that I do is after my ISP required router reboots and it stops talking to all my devices. Then I have to power cycle reboot them. Most of the time that is no more than about every 40-50 days.