Idk if someone already suggested it but how about marking them as .1 .2 etc. For example if there’s 3 parts to a chapter and how you said you don’t want it to skip from 5 to 16 without making it seem there’s a chapter missing, mark them as 5.1 5.2 etc. Since you already explained the chapters were split up, I’m sure people would understand what it means.
Or to add, instead of .1 .2, you can do the chapter it shows on the other website like if chapter 7 is chapter 17, 18, 19, then you can mark them as 7.17, 7.18, 7.19, so that it shows what coolmic chapter corresponds to the actual chapter it is. If this makes sense lol.
Idk if someone already suggested it but how about marking them as .1 .2 etc. For example if there’s 3 parts to a chapter and how you said you don’t want it to skip from 5 to 16 without making it seem there’s a chapter missing, mark them as 5.1 5.2 etc. Since you already explained the chapters were split up, I’m sure people would understand what it means.