Need permission to access to eero network (wired or WiFi)

I really like the management tools in the eero app; but I’ve been noticing devices joining my network that I cannot explain; so I block them (after the fact).  I’d really like the option to get a push notification that a device wants to join my network and will need my permission to join.  That way I can “Deny” access when I cannot identify the device and devices cannot join in the middle of the night while I’m asleep.