To put a copyright notice in Project Info or in the front matter, I have to open Character Map on Windows to copy the copyright symbol to paste into Dorico: ©
Is there a shortcut way to get this symbol? Word will convert (c) to © automatically.
To a composer, © is as important as #. 
I have Dorico on Mac, but is ALT+0169 working on PC?
technically, you don’t absolutely require the symbol ©, just the word “copyright” is sufficient.
but I have a cute utility where I just press the right alt button, then in order o + c to get ©.
it’s called WinCompose, and yes, it’s for Windows.
@Mats_Frendahl’s answer works if you have a numpad. If you don’t (like me), you’ll have to copy and paste it from somewhere else (like Character Map).
You can also simply copy-paste from Word, if that’s where you know how to create it the easiest way. Or copy it here © 