Here is what I have done this afternoon to neaten up my memory stick and to make use of the Direct.set folder which is a new feature for my PA700 but it is one that should save a lot of my Korg’s disc space.
I created the Direct.set folder on my USB stick, I used my PC but this can be done in the PA.
I did the Style > create Song exercise as explained above and saved it to my Direct.set folder where it created a Songbook.set folder and file
I did a full OS backup and stored it in to my USB
I did a Save All and saved it to my USB
I did a Save but only selected Songbook and saved that to the its own .set folder on my USB. I named it Songbook12June19.
On my PC I opened two versions of Songbook Editor
I opened Songbook12June19 in one version of Songbook Editor and the Songbook from the Direct.set folder in the other.
The Songbook from the Direct.set folder only showed the one entry.
The named Songbook12June19 showed all Songs that are on the Korg internal drive, including a batch of Songs that I created from Styles.
I selected my own Songs and those standard Songs I tend to play a lot and copied them to the other Songbook Editor Window where just the test Song was displayed, I then deleted this test song, so now I have all my Songs showing, I edited the artist name to my own initials then saved the file.
I then deleted my Songs from the Songbook Editor Window where Songbook12June19 was displayed, then I saved it.
Back to the PA and on inserting the USB stick and selecting Songbook I had dual entries for my own Songs, those on the USB stick in the Direct.set folder had my initials showing and the STY icon on the left is now highlighted which shows that the Song is stored in the Direct.set folder. The songs that are stored in the Korg disc where not highlighted and had the original artists name showing.
Next task was to delete each of the duplicates of my Songs from the Korg drive, select the song to be deleted > Write > Delete > Yes.
So now the Songs on the Korg drive are as original which is copied to the USB stick as a backup copy via the editing I did to it whilst in Songbook Editor and my own Songs are also on the USB stick in the Direct.set folder.
Now in Songbook I can tell the Songs stored in the Direct.set folder because the STY is highlighted and my initials are in the Artist box.
I have written out what I have done in a manner that you can hopefully replicate with ease, but do remember to follow line by line and Backup and Save All before you proceed.
Good luck.