DWC system folder pasword

Yao

I still thinkt this would be a welcome adition.

blocking direct access to this folder would protect it from users who do not know what they are doing.
students using a printer running Duet sometimes find themselves in the sys folder clicking something.
Clicking on something in the sys folder opens the file in editable form, some text can accidentally be injected and saved... with all undesired effects

Yes, it would not allow for full pretection.
But it would be a small hurdle you can't 'accidentally' cross.