After inserting an empty bar in the middle of a passage, I found that while all the notes shifted to the right, their dynamics did not. They simply stayed in the staff position where they had been. What did I do wrong?
Dynamics are not linked to notes, but to their position in bars. They’re not affected by insert mode. But you can select them (using the filter, for instance) and move them right with alt-cmd-right arrow so that they fit their new position.
If you add a whole bar by e.g. pressing Shift-B, entering 1 and pressing Return, all music (including dynamics) should stay together with a full bar added. Insert mode works on a per-voice basis, and only moves notes backwards, not other notations.
Of course, Lillie’s right. I should have asked you how you inserted that bar…