Moving video box, Inside another video?

Hi guy’s,. I’m new to the forum. Is it possible to have a moving vid box inside a back ground video. I’ll do my best to explain. A video is running (Vid 2) full screen which is intend to be a back ground video, Then introduce the main video (Vid 1) 65% smaller than the back ground video. I would like to bring the Vid 1 in from the top left hand corner making its way to the centre. I can get in the centre no problem. But to get that box to move in and out the scene i cant do, Can anyone help please? I hope that kind of makes sense.
Love & Peace always from the UK. Rea. .

Hi, see if this video can help you any way. Currently with Shotcut you cannot dynamically change the videos around.