The stuff in that file by default is just comments, it has no function. If you uncomment one, it works, but you can get there by just typing it yourself. Interesting, though, I don't recall anyone else asking about this before, and CoN came out a while ago
here are the 2 and 3 internal names/comments from the code enum block:
NeinzulClusterBomber, // builds Neinzul Clusters on all of its planets (expansion 2)
NeinzulViralEnthusiast, // builds Neinzul Viral Clusters on all of its wormholes (expansion 2)
NeinzulNester, // builds Neinzul Nests on most of its planets (expansion 2)
NeinzulYoungster, // waves are all Neinzul Younglings, waves warning time / 2, planets lightly defended (expansion 2)
SupportCorps, // no waves, adds supporting units to ally waves, adds supporting units to own planets and ally planets (expansion 2)
WarpJumper, // no warp gates, can launch waves against any non-warp-jammed planet (expansion 2)
Vanilla, // expansion 3
Everything, // expansion 3
Retaliatory, // counter attack posts seeded lots (expansion 3)
Spireling, // starts will all spire bonus types unlocked (expansion 3)
CraftySpire, // seeds lots of various spirecraft (expansion 3)
Thief, // starts with and uses lots of etherjet tractors, spire tractor platforms, parasites (expansion 3)
ExtremeRaider, // Vicious Raider ++ (expansion 3)
SpireHammer, // Includes a Spire Capital Ship in every wave (expansion 3)