Hi I was looking at various things in my account file and I stumbled upon this. As I understand this section specifies the rewards of preorder or some others.... Those generally known as special rewards. Then it would not be possible to put another addition in nom nom to be able to add the special rewards? Which as I understand are the ships and the preorder multitools (those of xbox, playstation, steam and switch) also in special rewards there is the starborn phoenix and finally the xo suit (the helmet with the x of xbox). From the preorder rewards I have found the reference of the switch rewards and the starborn phoenix:

"SW_PREORDER" - Switch preorder ship
"SW_PREORDER2" -Switch preorder multitool
"TGA_SHIP1" - Starborn phoenix