How to move the Debug Camera in the new Embedded Game tab?In 2D: Manipulate In-Game works by panning with the middle mouse button, and zooming with the mouse wheel. You do this directly on the game viewport, not in the editor. Set the mode in the Game tab to 2D for this to work (Input won’t work, the input will go straight to the game instead).
I've clicked on "Override in-game" camera many times, only to be mystified by why nothing was changing when I then tried dragging or mouse wheeling. This is a debugging godsend.