You do, but you mentioned also communication via email. That’s why asked you to stay in the forum.
There are multiple ways of doing a subset.
if you want to do on a batch of products you find here a discussion which can help you:
You can also use the graph builder. Or you just use the subset operation. But there you can only specify the corner coordinates of your area. This would be done with the options too, because the image needs to be rectangular at the end.