How to make GM in season 4?

[Dman12]

hey,
How do I turn normal character into a GM?
I tried to use "Mu editor" but now when I log in to the character the game crush..

Thank you.

[MentaL]

[kristapsb]

Run main.exe with olly!

[KarLi]

try use MuMaker then xD?

[Dman12]

Run main.exe with olly!

I though you are kidding but it works

Thanks :)