Suggesting a new hook for ERA/Era Erm Framework

OnLeaveTroopsOnAdvMap
Author: Hawaiing

This trigger is at the timing after leaving a stack on the map by Ctrl + Right-clicking (with the hard-coded wog option). The purpose is to get the coordinates of the left stack by a hero.

This is essential for many events. For example. in Mixed Neutral Mod, we have an option to prevent neutrals from escaping.

As we see from the code, the absence of checking whether a stack was left by a hero makes it possible to fight a left stack to achieve unfair advantages (farming exp/commander arts, etc.). Another example is stack growth. Leaving a stack on the map on Sunday will grant you more troops on Monday, which is not what we wish to see. As I can tell, checking whether a stack was left by a hero is so important whenever manipulating a stack, thus my proposal is to add the function/hook in Era instead of another mod.