split epubs based on groups not size

[eyalmazuz]

I have some web novels I want to download using narou and then split e.g. https://ncode.syosetu.com/n4824bz/ or https://ncode.syosetu.com/n0141ec/

they both have chapters that are grouped together in one story arc, for example in 異世界に転生したんだけど俺 you have 学院編1年度　前期, and then 学院編　1年度　夏期休暇～異世界編～
but in narou the slice_size argument is only split by grouping X number of chapters together
is there a way like slice_size but to split the based on the series arcs?

[whiteleaf7]

グループに基づいて分割する機能は存在しません