Problem with chapters of study suddenly aprare down to the right instead of up to the left beside th

Can somebody help me? Suddenly the chapters in my study's apare down to the right under the computer analysis and database windows.

I am trying to get it back up so that it is to the left of the chessboard. is this somewhere i can do something in a setting?
It seems suddenly it changed by it self. I have many studies with many chapters so i need it to be visible and not down under the screen.

Sounds like layout changed from 3-columns to 2-columns. Check out screen resolution or a zoom level in your browser. Ctrl - (minus) to decrease, Ctrl + to increase, Ctrl 0 to reset.

Thanks, you was right, I did not understand i pressed some buttons. Now it's fixed. I am very grateful :)