Is that a flaw or is there some reason for it to be that way?

OK, I figured out how to end a bar with the single vertical line.

Well, I can't figure it out, and the arrow doesn't do anything. I've got 9 quarter-notes in a single bar of 4/4 music, and when I add a note, it goes into the same bar. Something's not right. And, the new bar still won't play with the play button. I tried a hard reboot with no improvement. I entered...

I entered a new bar of chords after the previous bar, but when I click on the first chord of the new bar and try to play it, the cursor moves through the bar, but I can't hear the notes. If I play from the beginning, the notes of the new bar play. However, there is a lot of music before this bar, so...

OK, I figured these out.

Once you create a chord, is there a way to save it to a library so that you can recall it as needed?

What is the crossed arrow function on the pallette, and how is it used?

Under the guitar techniques pallette, I assume H, P and T are hammer, pull and tap. If you have selected this by accident, how do you remove it from your score?