[How To?] How to get thread total for one specific forum?

[Sidekick]

Is there a way to get the thread total for just one specific forum? I'm assuming it needs a query of some kind but I have no idea what.

For example, if this was my forum and I wanted to get the total number of Archived Forums, so that I could put on the index page somewhere, "The total number of threads in the Archived Forums is 34,183".

Thanks!