Hi Christoph,
Like in pre-2.0, you don't find cache tables page separately to create or manage them.
In 2.0, dictionaries and cache tables are integrated in one table, that means, when creating a dictionary you can select which are column supposed to be cached, based on that cache table will be created.
You can find the cache table create query in datasource types section.
Hope it helps..!
Warm Regards
Sivaprasad K