You do not need to and should not customize the Nginx configuration in SellCloud to work with Wordfence.
You still can use .htaccess files and mod_rewrite. This is a safe way to change settings.
The Wordfence Falcon Engine caching works with SellCloud's default configuration that uses Apache. Wordfence has even optimized its caching system directory structure for .htaccess files and Apache.
However, if you feel you absolutely must customize your Nginx configuration, Wordfence offers instructions to do so.
Unless you're absolutely sure about what you're doing, you should stop now!
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