This can be done with Shaiya Patcher. I can confirm it works up to EP 5.4, didn't test any episode above 5.4
Which episode are you looking to edit?
12/14/2017 21:59killer2p#3
Ollydbg is what alot of people use to modify there game.exe i have tested that nubnesses sah editor works for the most part on the ep 6 content i have yet to test it with Shaiya OS