Match loudness individual appended files in waveform editor

Im working in waveform editor.

I have a project with 260 audio chapter files. In each chapter there may be 10-40 "lines" with markers that are appended together to make the chapter.

I want to match loudness at -17 LUFS for each line. How can I do this ? if I match loudness the whole chapter file, it gives me an overall loudness of -17 LUFS but some individual files maybe lower or higher.

 Is there a way to "un" append, process each line, and have it all go back appended within audition workflow ?

I hope Ive explained well enough to be understood.. Thank you for any feedback, help, or workflow ideas.

-Scott