There's no baked in way to get that kind of permissions control. It's either all-or-nothing when it comes to the ACP.
Permission issue on node modules on Linux server
I am getting issues related to permissions on node modules on the Linux server. But when I restart from ACP, it resolves automatically. After a while, it happens again. Any idea why it is happening?
@rajeev2189 Could you post the exact error messages and where do you see them?
chown -Ron you entire nodebb folder, and make sure you aren't running nodebb as root.