That's not possible in QV11. The object triggers have been removed so there's no way to do this anymore. Charts don't generate click or activate events anymore. Instead of a container you could use buttons to show hide the charts you now put in the container. It then becomes possible to show a chart and hide that button you're trying to hide. Instead of buttons you could also use a small inline table with chart names and use a listbox the select a chart name. The OnSelect trigger for that field can then be use to show/hide the right objects. See this discussion.