Allow users to manage form display.

[danepowell]

I don't understand why administrators aren't allowed to modify entity form displays. For instance, I think administrators should be able to arrange fields on the node add/edit forms used by content editors. This has nothing to do with the rendering of content (entity view display), which I agree should remain disabled.

[tedbow]

Trying look at the manage Form tab from a non-Drupaler perspective. It is kind of confusing that there bunch of fields there besides the fields on the Manage fields tab.

would it make sense to use hook_entity_base_field_info_alter to set those fields to not be editable on the form?