Set view-mode for special folders like PDA

If they are custom views that are handled by the camera's software, rather than real folders, then you should be able to save their settings as described here:

[Folder Formats: Special Folders (Computer, Network, etc.))

Opus probably doesn't have a lot of control over them if they are custom so the Copy button might not work. Sometimes you have to use Drag & Drop with special folders.