I just import a score with a double piano line (treble and bass clef) as well as some solo instrument lines. When I went to change the piano to Violin 1, it replaced all the notes with a blank TAB line, but when I play it, the notes are still there. Help...

How do you change the file name in Notion? i.e., I uploaded a musicXML, did some stuff to it, and then had to delete. I re-uploaded it to try again, and now there is a -1 in the file name. Not a huge deal, but would be nice to be able to change that. Also, the only way I have been able to upload mus...