So i made a ticket to a gm and this is what i wrote
"Hey there *******, I’m Game Master Sadoryann and I heard you are having some difficulties in regards with your addon questions.
Sounds like a nice idea, what I would like you to check is he Forums and see if there is any details that you need to meet in order to use it.
A rule of thumb on this that if it doesn't overwrites the original code files then its considered a harmless program in general .so safe to use.
I also apologise for the delays in response time, and thank you for your patience and understanding while we work to reduce it.
Have a nice day.
Regards,
Game Master Sadoryann
English Game Master Team
Blizzard Europe"