Label Track box disappeared

I am an new user of Audacity 2.2.1. I’m working on my second project digitizing some LPs. I was using the Find Sound feature to label the tracks, and it was going great until I accidentally clicked the x button in the Label Track box, so it disappeared. I’ve spent the last half hour trying to get it back again. How do I make the Label Track box reappear so I can continue my project?


“Edit menu > Undo”
Shortcut Ctrl+Z