I would like to see Dorico pro 5 import all of the text of a file to include Composer, subtitles, copyright, etc. I have some Musescore files and Sibelius files that these items are not imported and have to manually put them in coverted Dorico projects to continue to work on them. Import does 99.9% accuracy of the basic, which is great. It would be nice for it to import all text.
Please ignore this post. I’ve done more research on Steinberg and realize some of my files I will have edit them. These are already published by me on Sheetmusicplus and sheetmusicdirect sites legally.
Thank you all.
Hadley 
Check the options on the MusicXML Import page of Preferences. In particular, make sure the Text items checkbox is activated.