Наследование: System.Windows.Forms.Form
        private void optionsToolStripMenuItem_Click(object sender, EventArgs e)
        {
            var options = new Options(serverAddress, true);
            //Standard in integrations should be showSelectInSidebarOption = false instead of true

            if (options.ShowDialog() != DialogResult.OK)
            {
                return;
            }
            serverAddress = options.ServerAddress;
        }