Can someone explain how to move(say, line 5) and place it between lines 1 and 3?
Welcome to the forum @Sam_Smith2!
I’m not sure if you mean literally move the stave or just the contents? Do you mean move stave 5 to stave 2? e.g. move Double Bass stave up between Violin 1 and 2? Or move the music from Double Basses to Violin 2?
Could you screenshot to give an idea of your situation?
Yes, the whole line. But now that you mention it the contents/notation will be a question down the line. This was created on my iPad. FWIW
If I understand you correctly, you want bars 17-18 moved to bar 9?
If so, this is a good time to use Insert Mode.
You can copy these two bars, switch Insert Mode on, and paste. Dorico will automatically move the current music in bar 9 forward and “insert” bars 17-18.
Don’t forget to switch Insert Mode off again!