Good to see another Unreal Engine user :)
Had trouble finding what I was supposed to do so I ended up wandering for a while and couldn't find what I was supposed to do
And one highly personal recommendation, go to your project settings and look for "Create compressed cooked packages", check it to true and it'll reduce your file size by around 50%, super useful for game jams
And feel free to check out our game, we also use UE4 :)