hi r
if you have read the german thread linked by utnik (there are translators like google that could help you understand it), manutius is giving a usage example for a justification breaking the line spacing.
personally, i feel, that in that case (a frame in smaller / bigger font), an automatic vertical justification only becomes interesting, if we first have some sort of snapping of the text lines to the guides (or even the baseline grid).
otherwise, i only see a marginal (if any) speed improvement in the workflow.
also, i don't have the feeling, that this feature is required for books printing... at least not around here...
on the other side -- a justification that would not mangle the ligne spacing -- there is already a ticket in the bug tracker:
https://bugs.scribus.net/view.php?id=1156as you see, it's an old ticket... this means that an external sponsor providing the programming work might be needed to get it done.
and this also means, that it's not trivial to implement the feature correctly!
i think that this second way of justifying would be very welcome if done correctly...
so:
- find programmers that are interested in working on this
- discuss the feature with the team
- estimate the work charge
- start a crowd founding to finance their work
- get the programmers to do the work
- deliver the patch to the team
if i googled your username correctly, you should be living in a country where something like this is possible... (enough people with programming skills; a good user basis for open source software for graphics)