Help me with many devices openwrt

I have many devices installed openwrt on them
I want to reboot them all at one time without entering every one by website
are there any way to reboot them at same time
I have more than 90 devices
one more thing
if i want change something in menu wireless
how do it with all
the all devices have Different ip

Have a look at OpenWisp.


can i install OpenWisp on Raspberry-Pi3 or Raspberry-Pi4 on Debian