I think the answer is the well loved consultant phrase āIt depends.ā Writers come with all sorts of different writing processes and different processes would lend itself to your concept.
Iāll answer from my perspective, but feel like I need to layout my process to set context.
I have no idea if I am a typical writer. I tend to be chaotic. I am not 100% panster, but I am not really a plotter either. The closest thing Iāve found is a flashlight method of plotting. I have the end gaol and maybe the start and find my way between them. Once I have the draft, the edit brings everything together. I also thought about laying out Gallup Strength Finders as an additional illustration of my squirrel brain. I am working edits on book eight (in case that is relevant). (with 9 and 10 ready for edits)
Iāve used Scrivener and stopped using it. My main issue was I needed separation between my plotting/brainstorming and my writing. When write I need the least amount of distractions I can get in a tool. The proximity of the writing space to the plot/notes derailed me. It was equivalent to looking up one small thing on the internet and ending up reading about Pangolins an hour later.
So for me, unless there was some friction to switching between āmodesā, the concept of a Aeon/Scrivener mash-up wouldnāt do much for me.
FWIW


