I don't have the software or the machine, but I do have Embird, which is an embroidery software that will split a design, although I haven't done it in a long time. The purpose of splitting a design is to be able to use the hoops you have to stitch the design out. I've never heard of having to buy a different hoop to do this. I hope others who have this software can answer your question.
The Embrillence website has some forums showing. That would probably be a good place to ask your questions.
http://embrilliance.com/ The blogs site:
http://embrilliance.com/phpBB3/ They also have a contact us site:
http://embrilliance.com/contact-us