I’d like that feature, too. In my case, it is for a category with topics that I’d like sorted by date as each topic has a video recording of a council meeting and it would easiest to digest them in chronological order in terms of finding meetings and having a sense of what is going on in the town.
I found a work around if anyone else reads this thread looking for how they can sort their topics in a category in chronological order of some sort. See this thread:
Just wanted to cross reference a post of a user asking for support as they had a difficult time finding a meeting thread in a category. If sorting be alphanumeric was available, this would not be an issue for us.