private void AddLine(object obj)
        {
            string line = obj as string;

            if (line != null && !RunOnLines.Contains(line))
            {
                RunOnLines.Add(line);
                Shift?.LinesCanRunOn.Add(line);
            }
        }
        private void RemoveLine(object obj)
        {
            string line = obj as string;

            if (line != null)
            {
                RunOnLines.Remove(line);
                Shift?.LinesCanRunOn.Remove(line);
            }
        }