How to add multiple WIFI network connections on volumio

For add multiple wifi networks / connections to volumio config you must edit wpa_supplicant.conf .

In terminal :

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
network={
scan_ssid=1
ssid="Wifi_A"
psk="Wifi_A_password"
priority=1
}
network={
scan_ssid=1
ssid="Wifi_B"
psk="Wifi_B_password"
priority=2
}
network={
scan_ssid=1
ssid="Wifi_C"
psk="Wifi_C_password"
priority=3
}

sudo wpa_cli -i wlan0 reconfigure

Hope you enjoy this settings!