Only the thread starter and selected secondary user groups are allowed to reply.

All phrases start with threadstarterreplyonly_ for your convenience.

Download Andy-ThreadStarterReplyOnly-1.5.zip and unzip it. Copy the src/addons/Andy/ThreadStarterReplyOnly directory to your server. From the Admin Control Panel Install the add-on.

$config['development']['enabled'] = true;

<xf:elseif is="{{$xf.visitor.isMemberOf([3,4])}}" />

Allows only the thread starter and selected user groups to make replies.(Example of Options page)(Example of Template modifications)By default the Moderating and Administrative user groups are allowed to reply. If you want to allow another user group, you will need to edit the Template modifications. In order to edit Template modifications, you need to enable Development mode.Add the following code to your config.php file:Once you have enabled Development mode, edit the Template modification. Look for this code:add additional user group IDs after the 3,4. Be sure to separate each number with a comma. Do this for both Template modifications.Note: be sure to remove development mode line in your config.php file once you finished editing your template modifications.Q: How can I alert users they need to be the thread author to reply?A: Create a Notice.