@Julian Sorry for the bump, but back then I didn't understand it and let it go, but now I need it for an other nodebb community 😛
Must I do this in ACP or with the nano thing?
On Unread Topic list, We can filter by Categories
It will be better that User can filter by Category or Tag when surfing Popular/Recent/Unread too.
For example: I want to find Popular post of Nodebb Plugin Category.
Same feature here: https://github.com/discourse/discourse/wiki/Basic-Usage-Guide
Update for Unread List. (Can filter by Category)