Moving things from one notebook to another

I want to move highlights that I have made from the "Unnasigned" notebook to another notebook. If I understand correctly, I need to click the "edit" box in the highlight that I want to move, and the different notebooks will give me a box to check to indicate that I want it to go there.

I don't see any box that I can check. Is it on the left side of the page where the different notebooks are listed? If so, I don't have that.

Any help would be appreciated.

Thank you,
Duane L

Are you doing this on the web version or on a mobile app version? I believe all you have to do on the web version is click on the highlight and change the notebook.