Using Downloaded Content

I download all the free sample (elemental, landscape mountains, reflecions, ETC.) My problems is once I start a new project using a blank slate, none of the textures, objects, effects, lightings, ETC. aren’t there. I want to put EVERYTHING I downloaded into one project and IT DOESNT NOT SAY ADD TO PROJECT, ITS SAYS CREATE PROJECT, BUT WHY? LOOK AT THE PICTURE I GOT ATTACHED!

PLEASE HELP!

You have to create the project first, open it and then go to “Game”, right click and select migrate. Then select your project file which should be under Unreal folder and select the content folder. With this you will have everything you need.