Customizing content of the Tabs widget

Hi folks. Newbie here, so apologies if I’m missing something obvious.

On my home page, I’d like a feed of posts to a particular category of the forums.

I found the Tabs widget, and I can use it to show “Recently Active”, but I don’t see a way to limit that view to a particular category, or to a particular type of post.

Is such a thing possible?

Any thoughts appreciated.

Mark