Roles/Filters necessary for activation key assignment to host group

Hi

we are trying to figure out which permissions are necessary to assign an activation key to a host group. The roles currently active allow to handle both activations keys and host groups. In the edit host group form, activation key tab, an activation key can be selected and the form can be submitted without error. But when return to this form, the "Activation keys" field has changed back to the former value.

Role filters active (but not sufficient) are

• view_activation_keys, create_activation_keys, edit_activation_keys, destroy_activation_keys
• view_hostgroups, create_hostgroups, edit_hostgroups, destroy_hostgroups

Only with the superuser admin checkmark we could accomplish this task.

Thanks
Bengt