Can i also have a functionality where, when ever a registered user posts something, it should go through an approval process from the Admin, before making it public.?

I have a web application with 1000 odd users already registered. I installed Nodebb recently and i would like all these existing users to have presence on nodebb database as well. I am using redis as the database for both my application and nodebb as db0 and db1 respectively. As well as, when they login to the application, it should automatically login to nodebb as well. How can i achieve this?