What is the problem?
I want to configure a connection to my network, but along with the SSID and password, it also requires a username/e-mail. Is it possible to configure this in OctoPi, or is it strictly passwords only?
What did you already try to solve it?
Nope, because I don't know if I'll break anything.
serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support!)
ssid="Your Wifi SSID"
???="Your Wifi Username"
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible)