The intended modifications are to:
1. Create additional setting i.e. an option to allow all urls (default) or limit allowed url(s).
2. Show that setting in the tag settings, upon tag creation or edit.
3. Save it to database.
4. Hide tags that has specific url(s) if the forum is opened in any other than the specified ones.
I am not sure on how to create an extension to it but can I simply copy its original code, create a new one with a new name, make modification to it, upload it, and install it?
Which file or files or parts should I look into specifically in making the above said modifications?
Any feedbacks or suggestions are highly appreciated.
