EntityParenthoodDebugger Keeps the `Entitas.VisualDebugging.EntityBehaviour`'s hierarchy as it is in your ECS world. if you use some kind of Child-Parent Relationship Components

EntityParenthoodDebugger.cs

// notes: EntityID is just wrapper around int, and ID is Component with [PrimaryEntityIndex] EntityID
// and ChildOf is [EntityIndex] EntityID

// this code uses mine Entitas.Generic
// if you wanna use this one with usual Entitas - just replace `Entity<GameScope>` with `GameEntity` and stuff

public class EntityParenthoodDebugger
{
    // Key: entity; Value: its parent
    private readonly Dictionary<EntityID, EntityID> _processedEntities = new();

    private ContextObserverBehaviour ContextBehaviour { get; set; }

    private IEnumerable<EntityBehaviour> EntityBehaviours
        => ContextBehaviour.GetComponentsInChildren<EntityBehaviour>();

    public void Initialize()
    {
        var contexts = Object.FindObjectsByType<ContextObserverBehaviour>(FindObjectsSortMode.None);

        foreach (var context in contexts)
        {
            if (context.name.Contains(nameof(GameScope)))
                ContextBehaviour = context;
        }
    }

    public void OnUpdate()
    {
        if (ContextBehaviour is null)
            return;

        foreach (Transform child in ContextBehaviour.transform)
        {
            if (TryGetEntity(child.gameObject, out var entity) && entity.isEnabled)
                HandleEntity(entity, child);
        }
    }

    private bool TryGetEntity(GameObject gameObject, out Entity<GameScope> entity)
    {
        var isEntityBehaviour = gameObject.TryGetComponent<EntityBehaviour>(out var entityBehaviour);
        entity = isEntityBehaviour ? (Entity<GameScope>)entityBehaviour.entity : null;
        return isEntityBehaviour;
    }

    private void HandleEntity(Entity<GameScope> entity, Transform childDebugger)
    {
        var entityID = entity.ID();

        if (!entity.IsAlive() || !entity.TryGet<ChildOf, EntityID>(out var parentID))
        {
            if (_processedEntities.ContainsKey(entityID))
            {
                // but this doesnt work for some reason:(
                childDebugger.SetParent(ContextBehaviour.transform);
                _processedEntities.Remove(entityID);
            }

            return;
        }

        if (_processedEntities.TryGetValue(entityID, out var cashedParentID)
            && cashedParentID == parentID)
            return;

        foreach (var debugger in EntityBehaviours)
        {
            var parent = (Entity<GameScope>)debugger.entity;

            if (parent.isEnabled && parentID == parent.ID())
            {
                childDebugger.SetParent(debugger.transform);
                _processedEntities[entityID] = parent.ID();
            }
        }
    }
}