1) Can still not use Print to PDF function

Please elaborate. What happens when you try to use it>

2) Like the new looks, but very little space is left to display e.g. the melody. The Song button is higher than most actual song titles will require.

If you use Ctrl-T mode (ie press Ctrl T), you can toggle between a full screen view, and a view with the toolbar on.

3) Can still not enter slash chord directly into the chord sheet window

What keyboard type are you using? Perhaps the '/' key is mapped to something else? Right click and choose chord options, you should be able to type directly in there.

4) Where can I change the patched of the various instruments (except in the Save Song window)?

The menus on the radio buttons (or clicking on the instrument names on the mixer have a patches ite,

5) Where can I unloop a song?

From the Loop button.

Note that there is a video that describes GUI changes...
https://www.youtube.com/watch?v=nCNQRUx6-wI&feature=youtu.be

Have Fun!
Peter Gannon
PG Music Inc.