Disbanding with heros

[Uncle_Norse]

I know this question has probably been answered before but i can\'t find it .

In old AM i have scouted with 1 militia or other fodder unit and when that unit died i didn\'t loose an expensive hero because my highest hero didn\'t take command of it  .  Pillaging there was also not commanded by a hero . This was discovered quite by accident there and i\'m wondering if it also holds true here ?

However , my main question concerns the \"undisbandable\" unit that i would sometimes like to get rid of on the Chilian server without having to loose a hero to do it !!

Does anybody know if there is a number of units below which a hero will NOT take command or if the hero fails to take command of a SINGLE stack ?

Although i\'ve been playing for a few years my experience with heros and colors other than Verdant is rather limited .