I can't find a way to automatically collect all media used in a slideshow in one place and change the show file to point at those media (a way to archive if your slides/music coming from different sources)
. . . . a way to automatically collect all media used in a slideshow in one place . . . .
Backup option circled in red in the image below - no need to change file to point to media - work with the project fie in the backup folder you created.
. . . .shift a sound track within its window without having to move left and right boundaries of the window . . . .
Use the timeline zoom control to zoom out the timeline - circled in blue in image below
For earlier versions the options should be similar.
Thanks very much for your answer. According to the Help for Archive, it is 'Export>Archive project onto hard disk', and I spent some time not finding it.