Secret text for Kunena plugin is a simple to use with a single configuration. Basically you just need to install it.
Secret text editor to insert Kunena button a padlock.
Pressing this button will insert the tag in the user's post [secret].
The words contained within the tag secret text will be visible only to specific groups of users, you will be able to determine from the backend.
Only users with special privileges will be able to see the lyrics "secret" useful for communication between the directors of the forum.
For any doubt or question please feel free to contact me!