Willobased
While willogenic is an origin we don't think we fully are, we do feel aligned to it, because Bryan spent a long time feeling that he had created a system on purpose, and because we now use what we call "willobased methods".
"Willobased" as a function rather than origin term refers to systems that affect or create things about their systems on purpose. This can include creating new headmates on purpose, but also things like creating new parts of the headspace, or the ability to intentionally create a sidesystem by wilfully restructuring a group of headmates.
In any of our Unified sidesystems or superclusters (which, by now, is all of them, including the whole system with itself), headmates can wilfully choose to switch to a new sidesystem or even supercluster. They would tend to do this if they split before the Unification but realized they were more aligned to an earlier part of our life or experiences and thus wanted to be part of that supercluster.
We also use build-a-headmate templates, which we just call "templates", to influence our splits. These contain information about the headmate like their name, pronouns, labels, and roles, but also paragraphs of information about them. The information can get quite in-depth, especially on our blog, and even moreso on the private versions of our templates (which we have in notes apps).
While we don't normally actively create the headmate on purpose, due to the fact that a split like that can be stressful and requires us to use naturally-occurring sources of stress, we will do things like passively imagining the new headmate fronting with us, figuring out things they would like, making a Pinterest board for them, drawing them, or imagining conversations with them. Sometimes, we naturally introject a template without having to do any of these things.
Our preference, then, is for headmates to join the system as someone who is already somewhat expected and understood but who was not actively created on purpose, which can additionally be a lot of baggage for a new headmate to process. We therefore use the methods of willogenic systems and systems who create willomates without necessarily being willogenic or (frequently) creating willomates ourselves.