Putting Archers on "Stay" in the worldbuilder (SOLVED)

[Halbarad]

Hey,
I wanted to place some defensive Archers on the walls of a castle, however they tend to run down.
I tried some different Object Properties in Aggressiveness and Stance, but the archers eigther don't attack or run down the walls out of the castle. I was wondering if there was an explanation between the types of aggressivenesses and stances, but I didn't find any in the mapping tutorials I found.

Edit: Found the solution, you have to set stand ground status on you can do this by using the script "Unit set stand ground status on-off", you can find it und "Unit (includes Structures) -- Other\Settings".