Hello adriano,
I am able to complete step 1,2,3 specified. But as you mentioned I have to write the code in which file among the below plugins\hooks.php file
'\\IPS\\forums\\Forum' =>
array (
2 =>
array (
'file' => 'applications/cms/hooks/Forum.php',
'class' => 'cms_hook_Forum',
),
),
'\\IPS\\forums\\modules\\admin\\forums\\forums' =>
array (
3 =>
array (
'file' => 'applications/cms/hooks/forums.php',
'class' => 'cms_hook_forums',
),
),