I dragged a horse off the Object Window into a rendered cell and it made a ref of it just fine, but I tried to use the faction ownership drop down list to set ownership to CurrentFollowerFaction. But it's not on the list! Neither are any of the factions I made for my mod. Is there a reason for this? Is there a way to get it on the list?

I know I can script the ownership in. I'd still like to know why it's not on the list though.