title: Can you restrict the access on a custom field type?
body: <p>I want to create a custom field type (MyCompLookup) that will be used in lists that all users will have access to. However, the field type will be fairly complicated / confusing to a regular user who is creating a simple list in their department's site. Is there a way to restrict certain users from selecting the custom field when they are creating columns for their lists?</p>