Not your question, but just for clarity for anyone else reading this...
The "MLCad.grp" file in v3.40 is technically obsolete, although I believe MLCad will still import it if a legacy "MLCad.grp" file is found from an earlier version of the software.
However, the structure of the Favourites and Group Definitions is now primarily in the registry:
HKEY_CURRENT_USER\Software\Lachmann\MLCad\Favorites
HKEY_CURRENT_USER\Software\Lachmann\MLCad\GroupDefs
A user who freshly installed v3.40 on a clean system won't even have a "MLCad.grp" file.
The "MLCad.grp" file in v3.40 is technically obsolete, although I believe MLCad will still import it if a legacy "MLCad.grp" file is found from an earlier version of the software.
However, the structure of the Favourites and Group Definitions is now primarily in the registry:
HKEY_CURRENT_USER\Software\Lachmann\MLCad\Favorites
HKEY_CURRENT_USER\Software\Lachmann\MLCad\GroupDefs
A user who freshly installed v3.40 on a clean system won't even have a "MLCad.grp" file.