[EvilLS1]

I don't think there's a way to do that in the board options. Should be pretty easy to make a hack for it though.

You could either do a quick hardcoded fix by replacing this (in editpost.php):

        if ($postinfo[dateline]<(time()-($edittimelimit*60)) and $edittimelimit!=0) {
          eval("standarderror(\"".gettemplate("error_edittimelimit")."\");");
          exit;

With something like this:

        if ($threadinfo['forumid']!=1 and $postinfo[dateline]<(time()-($edittimelimit*60)) and $edittimelimit!=0) {
          eval("standarderror(\"".gettemplate("error_edittimelimit")."\");");
          exit;

.. and replace the number highlighted in red with the forum ID for the one that you want to exclude from the time limit..

Or you you could go all out and add a new setting to your board options page so that you can easily add or edit multiple forum ID's to exclude.