Right now, my team plans to deliver configured Raspberry Pi machines to our clients' homes so we can ssh to them. The only problem is that we don't have their home Wi-Fi SSID and password until we get to their house.
Unfortunately, the person doing the installation is not technical enough to use the terminal for the instructions outlined here: Automatically connect a Raspberry Pi to a Wifi network.
Are there user friendly Raspberry Pi user interfaces for this type of connection for people who are not technical enough to use nano or vim?