1- Unfortunately, it is not possible to switch WLAN on/off according to a schedule, but you can restrict access with a schedule per device under Parental Control.

2- Yes with a switch

Concerning WLAN schedule: In the Web Admin Interface (for access data, see the bottom of the device), you will find the following setting options (= help text) under Tools > Parental Control. I find the possibility of setting different schedules for individual terminals interesting. lg

Parental Control
With Parental Controls you can restrict website access and time limits for Family members to create a safe internet environment for your Family members (especially minors).
Note: If the start time is after the end time, the multi-day mode is set for Parental Controls.
Help
Internet access time control allows you to control how much time Family members spend online. Use this option to set specific time periods for Internet availability.
Device name: These devices only have Internet access at specified times.
Time: Period during which internet access is allowed.
Recurrence: Days on which the above restrictions are in effect.
The website filter helps you to restrict and filter websites that your Family members have access to.

Hello, both are possible. Greetings Milan

I can't answer question 1 because I no longer own the device. Question two is relatively simple..You can expand the ports with a switch. E.g. Ubiquiti UniFi Switch Flex Mini, available for just under 40.- €.