private void AxInstancesAddButton_Click(object sender, EventArgs e)
        {
            var form = new InstanceForm();

            if (form.ShowDialog() == DialogResult.OK)
            {
                Properties.Settings.Default.Instances.Add(form.Instance);
            }
        }
        private void InstancesEdit()
        {
            using InstanceForm form = new InstanceForm { Instance = (Instance)instancesGrid.SelectedRows[0].DataBoundItem };
            var index = Properties.Settings.Default.Instances.IndexOf((Instance)instancesGrid.SelectedRows[0].DataBoundItem);

            if (form.ShowDialog() == DialogResult.OK)
            {
                Properties.Settings.Default.Instances.RemoveAt(index);
                Properties.Settings.Default.Instances.Insert(index, form.Instance);
            }
            instancesGrid.Rows[index].Selected = true;
        }