Actually, it DOES exist. It's existed for quite some time with various BSD groups. The only issue was that FBSD isn't providing it. Thankfully, other groups exist & have patched up this deficiency. GBSD exists now. More users are starting to see FBSD for what it's become -merely an ingredient.Again, if you understood the implications of doing such a thing; you'd understand why this doesn't exist yet. The FreeBSD Handbook acts as an appropriate mediation between use case scenarios. Let me know when you need a shovel to get your head out.