Only Show Post from blank days ago

[Melissa524]

Okay, Invisionfree has a good option that I would like to know if you can get on SMF when it comes to showing posts topics in the forum.

Showing 0 of 0 topics sorted [topic subject] by in [descending order] from [the last 30 days] 

Everything in the [brackets] is a drop down option.  I figure out how to do the first two options.  It is the third option that I am interested in. Basically, it only show topics in the forum that were last posted in so many days.

[Eudemon]

you can sort topics by the last post date
smf doesn't have x amount days of topics, you can go check the mod site if there is a mod for that