Custom Nginx location

Hello

I’d like to forward my site to localhost:8090 (confluence for this specific case), however update any of /opt/easyengine/sites/mysite/config/nginx/ file and then reload nginx_proxy doesn’t work, the site still point to original location.
How to custom nginx location?

For example, which file I should included the config below?

server {
    listen www.example.com:80;
    server_name www.example.com;
    location /confluence {
        client_max_body_size 100m;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Server $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
        proxy_pass http://localhost:8090/confluence;
    }
    location /synchrony {
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Server $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_pass http://localhost:8091/synchrony;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
    }
}