Hi,
I have found GDStash : http://www.grimdawn.com/forums/showthread.php?t=23414 to be a great tool and will do what you want and has a very user friendly GUI as well as a comprehensive manual (idiots guide).
All I will say about GDStash is use with caution it has the ability to really ruin your game by giving you everything you want plus more so use with caution.
Regards