I think this behaviour is to do with the bug 18316 (link in previous email).
If you locate the button in the project menu and look at the property inspector > text, you will see the tab indents that create the submenu items. e.g. https://www.dropbox.com/s/59afsj55qgk65vm/Menu%20Screen%20Shot%203.jpg?dl=0 <https://www.dropbox.com/s/59afsj55qgk65vm/Menu%20Screen%20Shot%203.jpg?dl=0> Paul > On 19 Nov 2017, at 10:17, Yves COPPE via use-livecode > <use-livecode@lists.runrev.com> wrote: > > Hello, > > When I move the menu (B) just after another menu (A) and want to make Menu > (B) a submenu of menu (A), this icon you describe is disabled ! > > > Greetings. > >> Le 19 nov. 2017 à 18:51, Paul Hibbert via use-livecode >> <use-livecode@lists.runrev.com> a écrit : >> >> In the Menu Builder, underneath the [Delete Item] button, there are two >> icons. The left one is to “Make the submenu item into a menu item” and the >> right one will “Make the selected menu item into a submenu item". >> >> On a side note, while checking this out and refreshing my memory of the menu >> builder, I noticed that the submenu items disappear from the list if you >> close and re-open the Menu Builder, however, the items don’t disappear from >> the button’s text in the PI, so they are intact still there. This bug means >> you only get one shot at setting up the submenu items in the Menu Builder, >> after that you would need to do any further editing of this menu in the >> button’s PI by adding or subtracting tabs in the button’s text. >> >> For more info checkout the "Creating Cascading Menus” section on P182 of the >> user guide. >> >> It seems this odd behaviour started with LC8.0 (dp3), there is a bug report >> Bug 18316 <http://quality.livecode.com/show_bug.cgi?id=18316> >> >> Paul >> >>> On 19 Nov 2017, at 03:29, Yves COPPE via use-livecode >>> <use-livecode@lists.runrev.com> wrote: >>> >>> Hello, >>> >>> on macOS 10.13.1 and LiveCode 8.1.7 >>> >>> In the Menu Builder, I’ve made different menu items >>> How can I create an submenu item of a menu item ? >>> >>> Thanks. >>> >>> >>> Greetings. >>> >>> Yves COPPE >>> yvesco...@mac.com >>> >>> _______________________________________________ >>> use-livecode mailing list >>> use-livecode@lists.runrev.com >>> Please visit this url to subscribe, unsubscribe and manage your >>> subscription preferences: >>> http://lists.runrev.com/mailman/listinfo/use-livecode >> >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode