struct controlset *s;
    struct sessionsaver_data *ssd;
    struct charclass_data *ccd;
    struct colour_data *cd;
    struct environ_data *ed;
    struct portfwd_data *pfd;
    union control *c;
    char *str;

    ssd = (struct sessionsaver_data *)
	ctrl_alloc(b, sizeof(struct sessionsaver_data));
    ssd->sesslist = (midsession ? NULL : sesslist);

    /*
     * The standard panel that appears at the bottom of all panels:

    ssd->cancelbutton->generic.column = 4;
    /* We carefully don't close the 5-column part, so that platform-
     * specific add-ons can put extra buttons alongside Open and Cancel. */

    /*
     * The Session panel.
     */
    str = dupprintf("Basic options for your %s session", appname);
    ctrl_settitle(b, "Session", str);
    sfree(str);

    if (!midsession) {
	s = ctrl_getset(b, "Session", "hostport",
			"Specify your connection by host name or IP address");
	ctrl_columns(s, 2, 75, 25);
	c = ctrl_editbox(s, "Host Name (or IP address)", 'n', 100,
			 HELPCTX(session_hostname),

    ctrl_checkbox(s, "Disable remote-controlled character set configuration",
		  'r', HELPCTX(features_charset), dlg_stdcheckbox_handler,
		  I(offsetof(Config,no_remote_charset)));

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

    s = ctrl_getset(b, "Window", "size", "Set the size of the window");
    ctrl_columns(s, 2, 50, 50);
    c = ctrl_editbox(s, "Rows", 'r', 100,
		     HELPCTX(window_size),
		     dlg_stdeditbox_handler, I(offsetof(Config,height)),I(-1));
    c->generic.column = 0;

		  HELPCTX(window_erased),
		  dlg_stdcheckbox_handler,
		  I(offsetof(Config,erase_to_scrollback)));

    /*
     * The Window/Appearance panel.
     */
    str = dupprintf("Configure the appearance of %s's window", appname);
    ctrl_settitle(b, "Window/Appearance", str);

    sfree(str);

    s = ctrl_getset(b, "Window/Appearance", "cursor",
		    "Adjust the use of the cursor");
    ctrl_radiobuttons(s, "Cursor appearance:", NO_SHORTCUT, 3,
		      HELPCTX(appearance_cursor),
		      dlg_stdradiobutton_handler,
		      I(offsetof(Config, cursor_type)),

		 HELPCTX(appearance_border),
		 dlg_stdeditbox_handler,
		 I(offsetof(Config,window_border)), I(-1));

    /*
     * The Window/Behaviour panel.
     */
    str = dupprintf("Configure the behaviour of %s's window", appname);
    ctrl_settitle(b, "Window/Behaviour", str);

    sfree(str);

    s = ctrl_getset(b, "Window/Behaviour", "title",
		    "Adjust the behaviour of the window title");
    ctrl_editbox(s, "Window title:", 't', 100,
		 HELPCTX(appearance_title),
		 dlg_stdeditbox_handler, I(offsetof(Config,wintitle)),
		 I(sizeof(((Config *)0)->wintitle)));

    s = ctrl_getset(b, "Window/Translation", "trans",
		    "Character set translation on received data");
    ctrl_combobox(s, "Received data assumed to be in which character set:",
		  'r', 100, HELPCTX(translation_codepage),
		  codepage_handler, P(NULL), P(NULL));

    str = dupprintf("Adjust how %s displays line drawing characters", appname);
    s = ctrl_getset(b, "Window/Translation", "linedraw", str);

    sfree(str);
    ctrl_radiobuttons(s, "Handling of line drawing characters:", NO_SHORTCUT,1,
		      HELPCTX(translation_linedraw),
		      dlg_stdradiobutton_handler,
		      I(offsetof(Config, vtmode)),
		      "Font has XWindows encoding", 'x', I(VT_XWINDOWS),
		      "Poor man's line drawing (+, - and |)",'p',I(VT_POORMAN),
		      "Unicode mode", 'u', I(VT_UNICODE), NULL);

    s = ctrl_getset(b, "Window/Colours", "general",
		    "General options for colour usage");
    ctrl_checkbox(s, "Bolded text is a different colour", 'b',
		  HELPCTX(colours_bold),
		  dlg_stdcheckbox_handler, I(offsetof(Config,bold_colour)));

    str = dupprintf("Adjust the precise colours %s displays", appname);
    s = ctrl_getset(b, "Window/Colours", "adjust", str);

    sfree(str);
    ctrl_text(s, "Select a colour from the list, and then click the"
	      " Modify button to change its appearance.",
	      HELPCTX(colours_config));
    ctrl_columns(s, 2, 67, 33);
    cd = (struct colour_data *)ctrl_alloc(b, sizeof(struct colour_data));
    cd->listbox = ctrl_listbox(s, "Select a colour to adjust:", 'u',
			       HELPCTX(colours_config), colour_handler, P(cd));