I would like to mention that, in propagate part formatting, the space size values made in frame break are not copied. Frame breaks themselves are copied however.
Yes, that’s true, Guy. Dorico doesn’t actually copy the breaks as they are in one layout into the next, because instead what it’s doing is replicating the system formatting of the source layout, which may or may not have been created using breaks – it could be simply that the part happens to be laid out in a particular way without breaks, but when you propagate the formatting, the destination part is then forced to have that layout by adding breaks on every system.
However, we could probably keep track of places where the space size is changed and replicate those changes in the destination part layouts too. I’ve made a note of this and will try to take care of it in the relatively near future.
Thank you, Daniel!