i saw a video where there was shown a system to make cloth inside the engine but i lost the video, if anyone knows how to do that please send me a link
This is the video you’re looking for: UE4 Animation and Physics Technical Showcase | GDC 2017 | Unreal Engine - YouTube
The in-editor clothing tools will be available as an experimental feature in 4.16 when that releases in a month or so. The previews start soon and you’ll be able to test it out there as well.