ctrl_checkbox(s, "Disable destructive backspace on server sending ^?",'b',
		  HELPCTX(features_dbackspace),
		  dlg_stdcheckbox_handler, I(offsetof(Config,no_dbackspace)));
    ctrl_checkbox(s, "Disable remote-controlled character set configuration",
		  'r', HELPCTX(features_charset), dlg_stdcheckbox_handler,
		  I(offsetof(Config,no_remote_charset)));
    ctrl_checkbox(s, "Disable Arabic text shaping",
		  'l', HELPCTX(features_arabicshaping), dlg_stdcheckbox_handler,
		  I(offsetof(Config, arabicshaping)));
    ctrl_checkbox(s, "Disable bidirectional text display",
		  'd', HELPCTX(features_bidi), dlg_stdcheckbox_handler,
		  I(offsetof(Config, bidi)));

    /*
     * The Window panel.
     */
    str = dupprintf("Options controlling %s's window", appname);
    ctrl_settitle(b, "Window", str);