Hello, I am a lurker of these forums and I regularly play adventure mode, although I am a fort mode newb, I still love this damn game with a burning passion. !!FUN!! events have lead me to discover recently that while I thought forgotten beasts were just myth, they are -not- infact. They are quite real and they quite want to kill everything in their path.
These unique creatures fascinate and amaze me, and because I recently started playing again after a long hiatus, I found Dfhack. I tried to go for the whole 'bodyswap untill you find a forgotten beast to steal while in adventure mode', and it didn't go really all that well. I ended up getting 'cuddled to death' by a giant tiger, then I fast traveled. When I'd found an underground labyrinth I stopped fast traveling, and was suddenly forcibly thrust into the body of a naked mole rat some countless levels below the ground.
I found a post on the forums saying "I believe you can make an entity that references [CREATURE:FORGOTTEN_BEAST_X], [CREATURE:DEMON_X], and [CREATURE:NIGHT_CREATURE_X], replacing the X's with numbers counting up to the maximum number in your world (so 1,2,3 etc.). Other then that the only way that I know of involves exporting the FB and night creature raws, placing them in the normal raws, and then regenerating a new world."
But that was the last post in that thread and It had no explination of how to do so, and I don't know how to make custom entities. Heck, I can barely mod things into the game without tearing apart other code and shoving them in, and my custom 'mods' were not exactly something urist mcplayer would want to download, nor were they completely functional the way I wanted. Think 'Anatomically correct', and 'Pervert', and you might figure out what I did. Hah.