Is it posible to fetch mapmarker from zone radius to map ?

private void CreateMapMarker(string landId, Vector3 position, float radius, Color color)
{
if (mapMarkers.ContainsKey(landId))
{
UpdateMapMarker(mapMarkers[landId], color);
return;
}

var marker = GameManager.server.CreateEntity("assets/prefabs/tools/map/genericradiusmarker.prefab", position) as MapMarkerGenericRadius;
if (marker != null)
{
marker.radius = radius ;
marker.alpha = 0.3f;
marker.color1 = color;
marker.color2 = Color.black;
marker.enableSaving = false;

marker.Spawn();
marker.SendUpdate();

mapMarkers[landId] = marker;
}
}

I made this ,but ofc doesnt work ,how can i fetch at least close size od radius of zone to map marker (MapMarkerGenericRadius)