I want to ask how can I make it so that when creating topics in a special section, these topics are private and only the Administrator of the forum and the one who actually created this topic can see them
Hi @kmkped,
The user must have "Can set own topic private" option enabled in the Accesses set for the forum.
So with that option enabled, User can create a Private topic and Admin can see all private topics as they by default have "Can view private topic" option enabled in the Accesses.
I would recommend checking this FAQ Topic: https://wpforo.com/community/faq/wordpress-user-roles-wpforo-usergroups-and-forum-accesses/#post-39664
What you wrote, I already know, thanks, my question was different, namely: how to make it automatically marked "private" when creating a topic and it could not be removed, i.e. the player makes the topic immediately private and cannot do otherwise