Unfortunately that doesn't work. I've been checking multiple versions ever since wowinterface supported it. It adds that information to the File Info tab, but a user has to click the tab to see it.
Thanks for the link. I've dug through the script and skimmed the wiki and so far I'm not seeing what specifically causes the behavior. I'll keep digging. But perhaps to save me time, is it necessary to use svn or github to get these multiple download buttons? I use a home-grown versioning system that has worked well for me for many, many years.
If you submit an update via our API that includes multiple toc compatibility it will enable multi-toc with the green text and it will delete classic and tbc releases if you previously had multiple downloads. You can also submit to the multitoc data point and enable multi-toc as well. This functionality has only been added early this year.
For multiple download buttons that also requires the api and when you upload an update with a classic game version or a tbc game version its uploaded separately from retail and added as an additional download. We've had this functionality since classic.