I have a band score that was sent to me and it's a Sibelius file. I'm trying to add instruments to the score but it won't allow me to select the VDL sounds...there is no option in the drop down, verses if I were to open a brand new VDL Template 7.0 and input the instruments that I want. Can you open a score and add VDL instruments? Or do I need to rewrite the whole piece in the VDL Template?