Best way to hide default inventories?

Dear all,

I managed to share inventories between different groups in a multi-group set-up by giving access right and adding the inventories to the list in the group settings.

How can I disable one of the inventories for a group (like the Publications)? How can I disable the default inventories for a group, if this group should only see the inventories of another group?

Any help welcome. I can’t change the general settings for the whole instance, because some groups use the publication inventory.