I have created a symlink.
Now I can see the config file in the web page.
However if I modify it and then try to save it (clicking save button) I get this error message
Warning: fopen(/home/pi/data/emonhub.conf): failed to open stream: Permission denied in /var/www/html/emoncms/Modules/config/config_controller.php on line 74
Warning: fwrite() expects parameter 1 to be resource, boolean given in /var/www/html/emoncms/Modules/config/config_controller.php on line 75
Warning: fclose() expects parameter 1 to be resource, boolean given in /var/www/html/emoncms/Modules/config/config_controller.php on line 76
Config Saved
And the file in /etc/emonhub is not modified…