NHF – new heroes for Heroes V 3.1.

This raises the question: is it possible to track mobs standing near portals/elevators?

For WGE, I want to implement a feature with mirrored protection for portals/elevators, and destroying the other side when the first side is breached, as if it were the same single guard for regular passages between zones.

Groups of portals are not defined.
Despite this, I have already outlined the implementation of what is required above.
It is possible to create a single guard, provided that it is invisible - attach the battle to the portal. Or generate this invisible guard near the portal without the right to attack it.