About QtDragon
Here you will see HTML files that are loaded from the FILE page.
If you select a file ending with .html, it will be shown here.
This is useful for displaying setup sheets created by any CAM program that generates HTML setup files.
If you select a file from the help_files folder in the configuration directory, a set of help pages will be shown.

As linuxcnc is primarily a cnc controller and not a web browser, link navigation is enabled only for files in the help_files folder. All other html files have link navigation disabled. It is therefore advisable to place setup sheets in a different location because they could potentially contain links to javascripts which will cause fatal errors in QtDragon.