Is there a way to make it so if someone replies to a topic in the last 2 minutes before the topic timers ends, the topic timer is extended by 5 minutes?
No, this is not possible at the moment. What’s the use case here, it sounds a bit odd?
You can make it so every reply extends the closure time but not with the time restrictions.
Possibly auction comes to mind …
Yep, this is the use case.
That is already possible at the category level, and we use it at the #marketplace.
You can configure a whole category to close topics X hours after the last reply. It is not possible with topic specific topic timers.
Can I set it to do it at the near end of the topic timer though?
No, there are no additional arbitrary rules like that. Just a simple extension with every reply.