You can try modify this file -> JoomlaFolder/modules/mod_easydiscuss_categories/helper.php

[gist type="php"]
// 14, 11 is category parent id
$options['categoryIds'] = array('14','11');

[/gist]

Thank you very much. It's a perfect solution

You're most welcome.

Just for your information, I have locked and marked this thread as resolved to avoid confusions in the future. Please start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiries.

Thanks for understanding

I found another problem,Other classes specified by this module on my other module location cannot be the same

How do I add this module 2