I know this is very noob, but I thought once I downloaded Samba (from the git hub link in https://docs.onion.io/omega2-project-book-vol1/network-file-server.html) and got RWX permissions, then I had the configuration files. (Re: my previous reply with screenshot.)
After tried to install Samba in accordance to the documentation (https://openwrt.org/docs/guide-user/services/nas/cifs.server) as instructed. Didn't work. I included two additional pictures. They are the same, but one is marked up.
Going to look up Sub-command-argument, but still trying to figure out a direction to solve the other parts.
There was a page (which I regret not saving as a favorite that I followed for the firewall. I could not find it now. I did find this one though:
Sharing Internet Access with Your Omega’s Access Point
Out of the box, your Omega’s firewall is configured to share internet access coming from a WiFi network with devices that connect to the Omega’s AP.
The firewall configuration file can be found at /etc/config/firewall. The contents can be modified to change your Omega’s firewall settings.
Note that Your Omega is already configured to handle the most practical applications. You need not edit this file unless you know what you’re doing.
To apply any firewall changes you’ll need to restart your firewall with the following command: