Thank you. Derrek, for your making this experiment.
I am actually working with two files of the same material, the first one formatted at A3 and then a copy which I formatted at Legal Size. That probably doesn’t matter, but in the A3 version, I was able to condense Bsn. 1 & 2, even though Contrabassoon has been afforded the position of being the first instrument in the hand of that particular player. (I do hope that the Steinberg folks will be hearing my sarcasm here about the inanity of that particular element of their design “philosophy.”)
BUT in my second version of the file in Legal Size, with the same settings in Layout Option>Players>Condensing, I could not get the condensing I wanted.
I do think I see a way around this – and I hate it – which is to create doubling instruments in their own right, not to worry about Dorico created “change instrument labels”, but rather to use “hide empty staves” as the way to switch when there is doubling. And, then, to make the parts, create custom layouts for, say Piccolo 1 and Flute 2) that then themselves can be amalgamated to single staves by using “hide empty staves,” and then the changes between instruments can be entered separately as staff text items.
I have to say, to all and sundry, that while Dorico is a powerful and quite beautiful program, it is also quite unforgiving and stressful to work with. And … the PDF manual is … in need of some … editing that might take into account that we don’t all of us know Dorico jargon.