Sorry for my ignorance, I was being too lazy to check the source code to see what those lines do exactly.
So:
^This one makes permanent the Network Address (MAC) of the emulated card.
Valid values are Boolean("true"/"false")
^This one sets how to multicast packets
Valid values are Integers of 32 bits(Not sure what goes here)
^This one enables (or disables) the Router module of Basilisk
Valid values are Boolean("true"/"false")
^This one sets the open ports for FTP (Only used if the ether mode is set to router)
Valid values are String([Port1Number],[Port2Number][...])
^This one sets the output file for the Serial Port01 (Only used if selected to redirect port to file)
Valid values are String([Path to file])
^This one sets the output file for the Serial Port 1 (Only used if selected to redirect port to file)
Valid values are String([Path to file])
Also found even more lines to detect:
^This one uses the given GUID of the Ethernet device to use (It's like selecting manually the Ethernet device to connect to)
Valid values are String([GUID])
^This one "links" a physical SCSI device directly to MacOS. The X is replaced with numbers from 0 to 6, so you can connect 7 SCSI devices to MacOS
Valid values are String(["Vendor"]["Model"])
^This one defines a port to be forwarded from the host to the client.
Valid values are String([udp/tcp]:[port in host to be forwarded]:[IP of the Mac]:[port forwarded in the cleint])
^This one blacklists opcodes from translation
Valid values are String([Don't know what goes here, I'm guessing CPU instructions?])
Hill radio station first attempt: Failure. Retrying...