MyBB Community Forums

I was wondering if there is a way to prevent a user from deleting their post, after a certain period of time, or at all.
I'm setting up an internal BB for my company, and that would be of great assistance, since we don't want people changing their posts.

(I don't use English ACP, so the following from my memory)
in the ACP >>users and groups>>usergroups(in the left menu)>>click on the user group that you want to prevent it from removing their posts>> forum and posts(on the sub top menu)
adjust the last option group, edit/remove options.

Remove a groups ability to delete their own posts.

Also you can set an edit time limit in admincp too.