[document web]
++[section]
++++[push button] name='Button 1' details=[menu] details-from:command-for name-from:contents
++++[push button] name='Button 2' label-for=[menu] name-from:contents
++++[menu] name='Button 2' labelled-by=[push button] details-for=[push button] name-from:related-element
++++++[menu item] name='Item 1' name-from:contents