Just checkin’ if you know this and if you do disregard.
This button gets you to the widescreen mode. You can’t manipulate anything in this field, but you can take a decent screen grab.
If your image is cut at the bottom or top, you can choose “All Items” and move everything together.
This is what I do to get my final images. Explore that “Snipping tool” in Windows if you have it. Hope this helps.