Importing MusicXML

Looking at screenshots, and taking due note of that all-important dialogue ‘Start your project by adding some players’: if I export a Sibelius file of an orchestral work as MusicXML and import it into Dorico, will I be able to use that start-up dialogue? Or would it be advisable to export the Sibelius file as individual parts, start a new project and import the parts one at a time?

I don’t know if this question has been asked before. If so, apologies.

You would export the project as a single MusicXML file and import it into Dorico. You can still add new players if required to the imported score.