Marta as default file viewer ?

[Tormen]

Do you know if something similar is possible for Marta:

https://apple.stackexchange.com/questions/45809/set-forklift-as-default-file-viewer/45831#45831

I tried: defaults write -g NSFileViewer -string org.yanex.marta;

defaults write com.apple.LaunchServices/com.apple.launchservices.secure LSHandlers -array-add '{LSHandlerContentType="public.folder";LSHandlerRoleAll="org.yanex.marta";}'

open .

But this still launched a Finder