I made a horse follow me...I'll have to find the events again. I know its possible.I used onBotTouched -> Bot -> something like setBotAim or setBotMovement. Something like that.If you don't have answer later tomorrow, I'll get a screenshot of it.
/applyav
onBotSpawn > Bot > SetAppearance > CustomPress Send
I don't think there is a way to make it follow you.