Hello, I am having such a hard issue with what looks like a camera view window on my work-screen. I was wondering if any one knows how I can shut this thing off so I can work on my project? I was working on my project when it all of a sudden, it popped up on my screen, and now I can not do any thing not even access and menu buttons or move the screen with keyboard or mouse. Any idea how to solve this? I will attach a photo of the screen with the Issue.
Thanks in advance.
This seems to be a bug with the positioning of the Tabs in the editor. So it’s not about a Camera View Window. Try a repositioning of the Viewport Tab. There is a yellow rectangle on the top left corner of the viewport, there you can open the Tab and move it. That helps me most the time, but you can also reset the layout.
Cool thanks, that really helped. 
Could you mark it as answered, that would maybe help other people with the same problem…
Sorry I am rather new on these forums. How do I go about marking it as answered?
Cool thanks! Learned some thing new today…
… Look here: