void Start()
    {
        NetworkManager mng = NetworkManager.singleton;

        netManager = mng.GetComponent <CustomNetworkManager>();

        netManager.RequestMatches();

        foreach (string player in netManager.playerNames)
        {
            dropdownCharacter.options.Add(new Dropdown.OptionData()
            {
                text = player
            });
        }
        dropdownCharacter.value = 0;
        dropdownCharacter.RefreshShownValue();

        ip.text   = "localhost";
        port.text = "7777";
    }
 // Online
 public void OnRefreshButton()
 {
     netManager.RequestMatches();
     dropdownMatches.ClearOptions();
 }