3D Tracking, image sequence backplate and unreal engine

So, I’ve been asked to learn Unreal and I need to use 3d tracking quite a lot. I figured how to import 3d tracked camera motion into Unreal but I don’t understand how am I supposed to import image sequence that is shown inside the 3d tracked camera. In 3ds max this whole procedure is 2 min tops. Image sequence goes into viewport, being animated and 3d camera imported with few clicks. I don’t understand why it is so complicated in Unreal Engine? “Future of the Industry”, isn’t tracking/match moving is an essential tool in real-time?
My question is, how to import and set the image sequence and link it with camera?

2023, if someone looking for it may be the Image Plate

Play full screen videos and image sequences on your cameras using Image Plates.