anchor.diff:  		wxMenu:append(Menu, ?ID_TRACE_NAMES,
   			      "Trace selected processes by name (all nodes)",
   			      [{help, ?TRACE_NAMES_STR}]),
  +		wxMenu:append(Menu, ?ID_GARBAGE_COLLECT, "Garbage collect processes"),
   		wxMenu:append(Menu, ?ID_KILL, "Kill process " ++ pid_to_list(P)),
   		wxWindow:popupMenu(Panel, Menu),
   		wxMenu:destroy(Menu),
  
positive.code:     ListCtrl = wxListCtrl:new(Panel, [{style, Style},
  				      {onGetItemText,
  				       fun(_, Row, Col) ->
  					       call(Holder, {get_row, self(), Row, Col})
  				       end},
  				      {onGetItemAttr,
  				       fun(_, Item) ->
  					       call(Holder, {get_attr, self(), Item})
  				       end}
  				     ]),
      Li = wxListItem:new(),
  
negative.code: 
  handle_call(get_config, _, #state{holder=Holder, timer=Timer}=State) ->
      Conf = observer_lib:timer_config(Timer),
      Accum = case safe_call(Holder, {get_accum, self()}) of
                  Bool when is_boolean(Bool) -> Bool;
                  _ -> false
              end,
      {reply, Conf#{acc=>Accum}, State};
  
  handle_call(Msg, _From, State) ->
  