I have a script which produces both a data table and a window which contains some charts derived from that data table. I'd like to arrange for the data table to be closed if the user closes the chart window. How do I do that please? I've tried using the "<< on close" property of the window, but am evidently doing something wrong as it appears to be having no effect.
(Obviously I could add a button within the window to close the window that way and tell the user to click on it, but there's no guarantee that they'll actually do that: some users will simply close the window by means of the "X" button at the top-right.)
Many thanks in advance.