Is there a way to stop new device from connecting to my network and/or is there a way to approve a request to connect via the app?

When I log into the App to look at connected devices, it only shoes devioces connected via wireless, it does not show devices that are wired on the network. How can I view devices that are plugged int

Is there anyway to add the functionality of the app to the web interface, it is very difficult to type and use the tiny interface of a phone, I would much rather manage the device from a web browser u