Top posting users - widget

Hello

I have a "Top posting user" widget. The widget counts every posts in the forum (all of the topics).
Is it possible to count only some topics, not the whole forum?

Thank you for your answers

Hello

Some topics of a specific category or some topics from many different categories?

Hi Skouliki!

It's a FRPG site, some categories are for chat, some for game.
It would be fantastic, if the widget counts only the game categories (all topics in game categories).

Does anyone know the solution?