A new command Edit ▸ Propagate Properties has been added, which copies the properties of the selected item or items from the current layout to all other layouts in which they appear. When invoked from Write mode, only the properties that appear in the Properties panel in Write mode will be propagated to other layouts; when invoked from Engrave mode, the properties that appear in the Properties panel in both Write and Engrave mode will be propagated.
In general, properties that appear in Write mode (which may apply to all layouts, or which can vary by layout, but not by chain of music frames) tend to be more semantic in nature, while properties that appear only in Engrave mode (which can typically vary not only by layout, but also by chain of music frames) tend to be more concerned with fine graphical appearance and positioning.
By way of example, slur placement and design (solid, dashed, etc.) are properties that appear in Write mode and will be applied if Propagate Properties is invoked from Write mode, while the precise position of slur end and control points are properties that appear only in Engrave mode and will only be applied if Propagate Properties is invoked from Engrave mode. In this way, you can choose whether all properties should be propagated, or only those that typically can apply regardless of the specifics of the way each layout is formatted.
