Drag and drop a big picture onto a small one - so I can adjust the big's content in the small one?

Hi!

Hard to explain but I used to be able to do this in Elements 10. Elements 2021 seems to react totally different...

Here's what I want to do. I want to be able to have a bigger picture as a background - level 0 (e.g. 50.8cm x 28.58) and a pre-defined small one on top - level 1 (e.g. 1.78cm x 0.51cm) so I can adjust (move, maximise, minimise) the big one at level 0 so I get just the content from the big one inside the small one as I need it.

In Elements 10 I imported the big picture to Elements, then created the small workplace with the pre-defined sizes in Elements. Then I dragged and dropped the big one onto the small one and I had the big picture as Level 0 at the back and the small one as Level 1 on top but transparent, so it showed just the piece of the big picture where the small picture was lying on. Then I could move the big one in the background around until I had just the right "cutout" inside the small picture.

In Elements 2021, when I do the drag and drop of the big picture onto the small one, the big one gets minimised and embedded into the small picture. Very frustrating to me...

How do I tell Elements 2021 to react like Elements 10? Is there another way to do it in Elements 2021?

Thanks for your help!