[Does Opusmodus come with sample library?]

I don't own any really good sample libraries, but I do own NotePerformer as a Sibelius plugin. (I also own Pianoteq with a ton of extra instruments). Is there a way to get a score into Sibelius? I'm thinking perhaps export it as MusicXML from OpusModus and then load it into Sibelius?

[Does Opusmodus come with sample library?]

I've been watching some of the demonstration videos where the composer "orchestrates" the sounds for instruments like strings and gets immediate feedback on how it sounds. Is this using a sampler that is built into Opusmodus or something else? If something else, how can I get that?