The docs are on tty2 - you can use the Meta+Tab+F? to switch between
ttys - the graphical installer is on F1
For what it’s worth, I have never been able to get the graphical installer
to work while setting the IP in a tty.
As to setting IP manually, I always prefer to do this. Some standalones
will pick up the address with DHCP - since I’m not interested in this I
haven’t bothered to investigate.