5. Regarding the song and file name display on X3MKIII

A: X3MKIII supports displaying title in category (display file name in browse files).  It needs to be realized after updating media library.  When browsing files via browse files and catrgory, the default display is file name instead of title.
You could go to "System settings ->file name display" and change it to "Title". Then you could see the title name when browsing songs under the category screen.