@Polo Yeah but that would be the same as releasing 1.1, 1.2 as chapter 1, 2 ect and while it would mean that it would be ordered in a way that would make it easy to see if any chapters were missing it wouldn't be true to the original release and would end up causing consistency problems.
@Polo In Japan each chapter is released in segments as in 4.1, 4.2 etc but collectively make up chapter 4 but bonus chapters aren't released as chapters but usually as a separate entity, so instead of having a bunch of Mangadex entries for bonus chapters they are usually put where they were...