Limit access of reviewer users so they are unable to add organisations and/or contacts Merged

We have provided reviewer access for to internal members to view our plans and capture proxy votes on behalf of our customers. We have seen inconsistencies and duplicates created, which is creating an administrative burden on our Aha! team. We would still want reviewers to have access to Aha! (for the reasons above) but we would like the ability to either 1) disable access for reviewers to add organisations/contacts or 2) have a setting to decide if this access is allowed or not.