Hello,
a nice little surprise 
Today I tried to change the voice of two notes of a chord, by using the
Paste Special->Paste into New Voice:
As a result I got (have a look at yourself):
a mf dynamic…
To confirm that this was the last action, I had a look at the Undo history, getting the confirmation:
I can upload my project, if anyone is interested:
Easter Egg.dorico (1.7 MB)
I can’t reproduce this with the file you uploaded.
Did you have an mf dynamic copied (instead of the notes) before executing the paste command?
That is strange. I can confirm that I can paste the mf to another place in the score. It seems to be in the clipboard.
It’s even stranger because this is a completely fresh project file. I only played in those notes…
[edit] It is possible that my last Dorico action (24 hours ago) might have been copying a dynamic… and that clipboard content survives - even when starting a new project.
(To be fair, all of the other options in the Paste Special menu do not require you to cut or copy first.)
You are right, of course. I delete my post. 
Christian, yes cut is one possible and sensible way.
(After having cleared my clipboard) if I just select these two chord notes and then choose paste into a new voice directly, it will look like this:
When all notes are in the same staff, I would use the menu “voices>move to voice” instead of Paste Special.
Rafalel, yes of course, this works, too.
I wonder, what is actually the difference between:
a) Paste Special->Paste to voice->New Down-stem Voice
b) Voice->Move to voice->New Down-stem Voice
In both cases one has to make a selection first.
a) and b) then work the same - except that you additionally can paste to a different staff with method a).
So if one is working on different staves, one needs method a). If one works on one stave only, both methods are possible.
