Submenus

Quick question. About year or two ago, i remember somebody talking about the fact that there was only one submenu on the panel where abilities are found, so that if you have a build button, and a hero abilities button, both the buildings and the hero abilities options would show up on the same submenu, as there can only be one. However, being a big fan of Enfo's, I found that one of the very latest Tournament Edition maps (the 2004 one) the one hero (Moon Mage or some such) has an ability that enters a submenu that has another pair of abilities.
Are there now separate submenus that can be used to support many spells now, or was that done through some clever triggering? I would try to find out for myself, but my comp really sux, and it runs very slow with such a data-intensive map loaded.

Ya they used very complex jass editing to do that. A good example of that is in the strage bag and spell book editing done in this map. U can just import this stuff into ur map and theres a sub menu.

bagdemo.w3x