Custom Table Selector Ordering

It doesnt exist , but you can clone the existing form control (~/CMSModules/CustomTables/FormControls/CustomTableItemSelector.ascx). Add new field OrderBy(in the database and in the code) and in CustomTableItemSelector.ascx.cs you do something like:

    // you custom property
    public string OrderBy
    {
        get
        {
            return ValidationHelper.GetString(GetValue("OrderBy"), null);
        }
        set
        {
            SetValue("OrderBy", value);
            uniSelector.OrderBy = value;
        }
    }

  ...

  public void ReloadData()
    {
        uniSelector.IsLiveSite = IsLiveSite;
        ....
        uniSelector.OrderBy =  OrderBy
        ...
        uniSelector.Reload(false);
    }