Viewport locked?

Hey guys,

First of all, it’s my first time using this forum so I hope I’m somewhat in the right category. (Couldn’t find a section for bloody noobs).
Please move the Thread if not.

I’m very new to Unreal and basically don’t have a real plan of what I’m doing yet so it happened, that I somehow must have tapped the wrong shortcut and my viewport got locked and now has a frame above it. I can’t move the camera or select objects.

I could just restart but I better ask for what i miclicked so I know what to do in the future!

Thanks a lot!