How is it possible to change a topic into self-moderated retrospectively?
Would be useful for some existing topics, which got spammy over time after a few dozen pages.
And sometimes, I just miss to select self-moderated and don’t know how to change it after the topic is created.
I’ve tried to find it, didn’t see any option.
Editing a topic doesn’t offer that option currently, which is very weird and tiresome.

Same applies for adding polls retrospectively. I don't find where we can enable it after a topic has been created / for existing topics...