private void button1_Click(object sender, EventArgs e)
        {
            if (ModeltextBox.Text == null)
                ModeltextBox.Text = "";

            if (MobsChoiceOpen != null)
            {
                MobsChoiceOpen.StartPosition = FormStartPosition.CenterScreen;
                MobsChoiceOpen.TopMost = true;
                MobsChoiceOpen.Show();
            }
            else
            {

                MobsModelChoice fm = new MobsModelChoice(this, ModeltextBox);
                MobsChoiceOpen = fm;
                fm.TopMost = true;
                fm.Show();
            }
        }