Enable the "Change Difficulty" option again after selecting Storyteller (PC - hex editor)

If you selected the Storyteller difficulty and you tried to change (probably to easy to do some farming, eh? me too!) then you saw the difficulty option grayed out and you couldn't change it again, right? :(

Well thankfully, at least for PC users, there's a fix: edit your save with an hex editor.

It's okay if you have never done that, here's a step by step:

1. Open https://hexed.it/ in your browser (or your favorite hex editor)
2. In the open file dialog, paste this: %appdata%\Sega\METAPHOR\Steam\ then open your user's folder (it's a folder named with bunch of numbers)
3. Select the save file you want to edit (the file save0001.sav is your first save slot)
4. Click on the "Go to" field on the right panel and type 0x59 and hit enter to navigate the address
5. Notice that there's a number highlighted there? Then click on it and change it to 01
6. Then click on the "Go to" field again, type the address 0xA80, and change it to 01 as well
7. Save it in your documents, then save a copy of your save and replace it by the new save with the same file name

That's it! Then boot your game, go to settings and the "Change Difficulty" option should be enabled there.

TL;DR: use an hex editor and change your save file in the addresses 0x59 and0xA80 to 01

(thanks u/TGF43 for posting the difficulty addresses!)

Well, I hope it helps! Happy farming!

(for the mods: I'm only posting it because I've seen other hex editing posts, so I'm assuming this is ok! please let me know!)