Well i deleted the data when i was cleaning up my computer a while back, but I still know how to make it. I am not sure if ALEX supports it, since I do not own it. I know it works for BI.exe though.
If you want to make it yourself just allow every faction to horde and give the "can_horde" trait to some levy units. You also may have to edit some files in the UI to get the button symbol, but I dont think it is neccessary. You do, however, need some files only BI has (afaik). I promise its easier then it sounds.
But hey, if I can get enough support I think I will put out a new one.
Oh and the best part is is that the "destroyed" faction not only gains a few stacks of levy units, they also gain a few new family members if their family is almost destroyed. So, if you defeat the last remaining family member in their last city, about 4 more new members will rise to seize power. Great for roleplay back when I used it.
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