Have we heard anything on this feature? This is becoming a problem point for us.
Yes, please add this ability. It is very easy to accidentally edit the wrong cell (especially when a view is set to automatically sort or group). Once it gets accidentally edited it becomes very difficult to find and correct the mistake.
It would be extremely helpful to be able to lock on a per field basis.
I would appreciate an additional permission level so that as administrator I can give people the ability to add and edit data, but to prevent people from deleting a record. That is the biggest risk with our use of Airtable - someone accidentally deleting an entire record.
The ability to lock fields the way I can in Excel would also be a huge security help.