Czechoslovakian catalog

Can somebody please reset the catalogue of Czechoslovakia to a chronological order?
Now the subcategories are in alphabetical order, which makes no sense to me. So the 1990 coins follow the 1930 coins and then the 1950's coins etc.
I checked but everywhere we use a chronological order, so please do that here as well.

Thanks, Kees

Only Xavier can do that. And yes, we know, and we are waiting.