I’m not exactly sure if you want no ID suggestions for Unknowns or only want narrower suggestions. If it’s no suggestions until you’ve narrowed it yourself:
- Mark it as casual grade temporarily. A much smaller fraction of identifiers looks at these compared to wild observations.
- For the identification, type in something like “Please do not Suggest IDs”.
- Disabling the auto-sync feature (see: Auto-sync on app) allows editing/identifying before loading into iNat, at least with the Android version.