Multi-category Downloads

[ger]

Not exactly a high-priority item, but I was thinking about releasing my groupmembers/player mods, when I realized that neither works quite right without the other. So then I tried to decide which category they should go in, player, group, or misc. But really any one of the three has its problems. The ideal solution would be to be able to create a sort of symbolic link within a category to a download that's technically stored in a different category.

The only problem I can think of is "spammed" links, where an author posts their pet project to every category. But I like to think we, as a community, are better than that.