Possible to keep "title" tags from MP3 files when converting to M4B chapters?

[Woetoo]

Edit: Okay, I'm an idiot. I just noticed that the Chapter editor includes the option to switch off all the generated parts of the name and a dropdown list to use some of the MP3 tag information - including "title". Now I just need to figure out if audiobookconverter saves that format/style as the default for future chapters/books - as overriding things for each chapter individually and every future book would be painfully slow. Still... my request is at least 50% unnecessary.

Edit2: By preference, it would be nice to have an option like "Save as default [x]." when altering the Chapter editor options. I note from another reply, there used to be (v5.5) further customization possible via a file called AudioBookConverter.properties". I've been unable to find that file. While I'd prefer that functionality within the tool's own UI - I'd settle for a text based configuration file where it's possible to code something like "TITLE = {tag:title} - {tracklength}", etc. as example.

I am converting multiple MP3 files into a single M4B file (split by parts instead of split by chapters).
But in the process, the chapter information from the MP3 files is ignored and replaced by an auto-generated chapter title (Usually "Chapter {chapterno} - {duration}").
I appreciate that title is configurable to an extent, but I'd rather keep each file's own existing MP3 Title.

Is it possible to disable the title being overwritten by the auto-generated chapter information?
Or is it possible to either automatically or manually import the MP3 tag information while on the chapter editor tab?

I thought I might be able to correct things after M4B is created using a separate tool (MP3Tag), but it seems the ID3v2 tags it's capable of updating are not the same created/updated by AutobookConverter. Even when you set the option that allows MP3Tag to show the individual subparts of the M4B file.

At the end of the day, I rather the title be the same as the title tag of the source MP3 file - without me manually needing to go through and edit each one every time I use this tool.

By way of explanation, I tend to attempt to "clean up" any audiobooks as I received them. So I split apart the M4B, correct the volume levels on each chapter, remove any unusual volume spikes, convert the book into my preferred bitrate and then update the MP3 tags to fix any inconsistent or unusual naming and then save the files. It used to be this is where I would previously stop, but using your converter - I am now able to recombine the updated MP3 files into a single M4B file. Except... I also need to do a lot of manual editing of chapter information as part of the process - something which (no offence) MP3Tag is much better at doing for multiple chapters - especially where the book has intros, outtros, prologues, epilogues and occasionally interludes.