It would be really nice if we could copy & paste (or select and alt+click) Condensing Changes just like so many other things in Dorico.
Depending on the music, of course, I find myself applying Condensing Changes with the very same settings again and again.
(If I’m missing something here and this is already possible somehow, just point me in the right direction - thanks!)
Prettyplease? 
Have you tried Alt-clicking a Condensing Change signpost in Write mode?
Wow… This really works… #mindblown
But this doesn’t make sense, does it? 
Anyways, so please let me change the feature-request: Duplicating Condensing Change should please work in Engrave mode where I expect this to be available. Working with Condensing Changes is a matter of Engrave mode, and I don’t see a good “Doricoian” reason switching to Write mode should be necessary here. I guess it’s just an oversight.
Thanks! 
Copy and paste works too, in Write mode.
I guess the distinction is that you can add a change in Engrave mode, since it’s presentation related, but copying and pasting of anything can only happen in Write mode.
You can also copy and paste other Engrave mode signposts in Write mode, like note spacing changes and system/frame breaks. And the part I do find a little inconsistent is that you can alter condensing changes and note spacing changes in Write mode by double clicking on the signposts.
Yeah, could be. But this would make me crazy switching back and forth 
The good thing is that we are already crazy - considering what we do…
Example:
Violinist Henryk Szeryng says, the miracle of “the fragile little box is that we can produce sounds that penetrate people’s hearts and provoke tears just by drawing horsehair over sheep guts.”