Threads Double prefixes
 

While searching for mod I found out, there are others who would need that too.

Having double prefixes would significantly improve organization of forums, if you use it for any sorted data.

For example, you have car forum (or sport, or events, or real estate...), and you can have

1. prefix: brands, like, Audi, BMW, Toyota...
2. prefix: power of car: 1.600 ccm, 1.800 ccm...