Add Fine and DC al Fine to a score.

I imported a pdf and now have it in Musescore3 on my computer. However, the import lost the Fine and DC al Fine that were on the pdf. I want to put them back. The instructions say press Ctrl-T. That does nothing that I can see. The instructions say to use the text menu to drag a text box to where I want the text. That didn't work at all either. I've tried a number of things, but nothing works.

Does anyone know how to do this?