Relationships and capabilities

EDIT: as for the New > Relationships submenu, a Contributor cannot actually create a new relationship. It leads to a page with the only option to add a Title and Submit for Review. So at least they're not able to create new relationships -- but it's also a completely useless and potentially confusing menu, so I'd love to remove it

Thanks Peter. So if you say it's beyond the scope of Meta Box, am I correct in understanding that Meta Box natively registers no capability that can be used to control permissions, and that it otherwise offers no feature or hooks to be used in a multi role environment?

I see MB registers at least 3 capabilities
- create_metabox_field_groups
- delete_metabox_field_groups
- edit_metabox_field_groups

But that's all - is that correct?

Peter,

I think I understand - and I'm not expecting MetaBox to manage capabilities. But for example when creating a CPT with MetaBox, there is a Capability type option, and one can choose either Post, Page, or Custom.

By choosing Custom, I can then use another plugin to manage these capabilities for my user roles.

I would like the same flexibility for custom taxonomies and for Relationships. Basic capabilities such as read/edit/create would do the job. So my question is whether MetaBox can define the capabilities so that I can manage it with a third-party plugin.

I understand - thank you Peter