Well after I load the save again the changes I made to the ghost are the same again. It will not let me change anything on them. The only thing that works is the plasm. I got the v2 of the save editor I found when looking around on the forum and that does let me change the ghosts powers but whats weird is that it does not show the darkling in the ghost list. Also there is no way of changing there fetters. I just want a working save editor that can let me change fetters and there powers.
That's probably because he's never actually available in any of the levels until the very last one. Likely he's not even "saved with the game" for that reason. About the fetters: I remember changing one of the ghosts from only using inside fetters to outside fetters. It was done by HEX-editing the savegame. I can tell you a bit about HEX-editing, but we'll get nowhere without knowing the actual starting position of the fetters inside the savegame file.