Gradual dynamics that start/end partway through notes

If the start/end of a gradual dynamic is not attached to a note, there are restrictions on how you can move the start/end position.

For example, if you enter two hairpins separated by a space into the dynamics popover, pair of hairpins that looks like a messa di voce is created but containing two separate hairpins, rather than the combined option. Neither of the open ends of the hairpins is attached to a specific notehead, and you cannot move the center of the pair of hairpins rhythmically. You can lengthen/shorten the two hairpins as a group but you cannot lengthen/shorten each hairpin individually.

However, if you enter two hairpins without a space between them into the dynamics popover, you can move the center of the pair of hairpins and each hairpin rhythmically, but only to noteheads. You can lengthen/shorten each hairpin separately according to the current rhythmic grid resolution.

You can move individual hairpins in Engrave mode to any graphical position. If you input hairpins separated by a space into the popover, you can move each hairpin independently, for example, if you want to adjust the graphical peak of the pair of hairpins. You cannot move the graphical peak of messa di voce hairpins, except by adjusting the note spacing. However, moving dynamics graphically does not affect dynamics in playback.