Question How to display main category and sub category in recent topics

Hello Everyone,
In recent topics tab, we normally see topic name and it's category. but what i want to show is that topic's the root category as well as that topic's category.. so that user can easily guess where that topic is from?
is it possible?? if yes then any help would be appreciated.
regards

Thank you for replying rich,
the point i am trying to make, is it possible to add subcategories as well in that recent tab. there is already a category option, i would like to add subcategory as well.
regards.

Thank you for replying rich,
What i wanted to say is, in the recent topics tab, for every topic that has discussed, there is a category link which states that from which category that topic belongs.
for Eg.
like in the first image where there is category "4.0 K General Solution" which is already given. But what i want to do is, i also want to add "Community Self Help" and if possible "General questions and how-tos" category as well in recent topics tab.
regards

Thank you for answering rich
i appreciate your help but can you tell me where i can find the solution...
regards