I am using Creo Parametric Release 7.0 and Datecode7.0.7.0
The Embedded browser does not follow the settings of the registry.
The settings done are working well in Chrome (outside of Creo), but not inside creo.
Modifications are done in "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\AutoOpenAllowedForURLs" in order to open files without asking where to store them.
This is not documented functionality. So it is supposed to be not supported by Creo.
If you need this as a future enhancement then post a new Creo idea.
To clarify this from R&D perspective as well, please file a case at PTC technical support on that issue.
Regards, M