Welcome @HelmZalee!
You’re right, see New User restrictions, and you’re also right, it is there for a reason.
The old forum is still flooded with spam registrations and it has long started here. But here it’s a matter of admins and moderators and no longer the whole community.
Concerning your questions, you’re trust level was just raised and you can now use the full power of the forum.
For the manual, please have a look at the Manual Source on GitHub.
If you are uncertain, you can start a new topic here in the Documentation channel to discuss your issue.
Otherwise you can create an issue on GitHub or even make changes, which will create a pull request for direct merge.