How to modify CyberPanel Cloud WP subdirectory install so that Site URL of http://example.com works?

Hi, I just created a Digital Ocean CyberPanel 1-Click-Install Droplet, and followed the Cloud WordPress install instructions here:

This installs WordPress in a subdirectory (http://example.com/wordpress). That works OK.

However I want to use http://example.com to access my site, so I tried to follow standard WordPress/CyberPanel procedures (ie I modified Site URL from http://example.com/wordpress to just http://example.com, modified htaccess, set DocRoot in VSHOST etc…) to allow me to access http://example.com. But none of my strategies worked.

Instead of describing all my failed attempts, is there a description of exactly how I should modify my CyberPanel Cloud WordPress subdirectory install so that Site URL of http://example.com works?