Android x86_64

Hello !!! how can i get the GitHub source code for enable this option in packing on unreal engine? android play console ask me for support on devices for 64 bits, the tooltip on build section in unreal engine says that need support from GitHub so I’m already follow the instructions from intel for download from SDK manager the x86 and search in GitHub for the code but i don’t find it , also im not programmer , how can i installed ??? thanks for read =D

Can anyone please answer this? There’s literally 0 information on the internet and the tick is grayed out with a tooltip saying only “This requires Github source”.
Found a related issue with an answer that could work for this issue too: https://answers.unrealengine.com/questions/305145/view.html