Go to the « My settings » menu then « Form » of the interface.
Manage the global visibility of data. A disabled attribute will not be available in the administration interface or in the form.
Manage the visibility of the data in the “Visible” column. If the eye icon is pink, it means that the field is visible to users. If it is gray, it means that the information is not visible.
Manage the editable or non-editable aspect of the data by users in the fourth column. If the pencil icon is pink, it means that users can edit the item. If it's gray, users can't edit it.
The form on the right is a preview of the form.