Okay, putting in bar lines, I know what the handbook says, and I've seen them do it on the video. Open the palette, select the bar line, and watch the different measures darken as you pass over them to get to where you want, click, and the bar line appears.
It doesn't work for me. I click on the repeat I want, none of the measures shade, and nothing appears. I've tried it in edit and input mode. I've tried selecting notes and rests. Nothing appears. I've noticed the same problem with line breaks. I've noticed the same with repeats, dynamics, and breath marks. I'd venture to guess that something is wrong with my palette, but how would I know? How would I fix it?