Sorry for the late reply,
OK to do this i will need you to make the following change to your forum settings.
ACP >> General >>
Forum >> Categories and forums >>
Find the forum you need the posts to be made in and click on the
Now you should have this screen >>
At the bottom of the page you need to look for the settings >> Auto-pruning >>
Now set this to the following
Then Save.
Now you need to go back to
ACP >> General >>
Forum >> Categories and forums >>
Find the forum you need the posts to be made in and click on the
next to the one that you just made the change to.
Now you need to make a new forum that will be attached to the other forum This will be where your posts will be moved to when 24hrs is up and will be locked in.
Name it the same as the other forum but with Archive Section on the end now you have to make the settings as follows
set this forum to Forum status : LOCKED.
This means all the posts that go in that forum will be clocked and no one can post in it other than admins and or mods.
Now save.
Now we need to set the Auto prun settings.
ACP >> General >>
Forum >> Configurations >> look for
Basket : pick the forum you just made
Pruning in the basket : YES
NOTE: if you set this to your basket any time you hit the Garbage / Basket Button in your mods tools all the posts you pick to put in the basket will be placed in that forum too.
Hope that helps on your request.
APE