Greetings Shino888, thank you for posting your question.
This subject seems bit niche but thankfully I found a blog post you can read over. Most of the work in going to be in CPP. I cannot attest to the efficacy of this post as it is a third party website and the results may vary.
WARNING: This is an external link and as the end user, you are responsible should something happen to your device when you choose to click a link or follow steps that are not endorsed by Epic.
https://blog.actorsfit.com/a?ID=00700-3b531e9d-0206-47b1-8bcd-586704ab1ba0
Hi! Polite_Muon!
Thank you for replying my question.
As you said, it might have been a bit niche content. 
In the middle of the day, it seems that it will not go smoothly
I took a look at the site you introduced to me, and it seems like it’s not going to be easy…
I will try this way once! (I just hope the engine source doesn’t get corrupted. 
)
Thank you!
Shino888