We need to allow our JIRA users to comment externally to customers in JIRA Service Desk. Most of our JIRA users are Collaborators, because the license apply for number of Agents. The only way we have found allows this is to make our JIRA users an Service Desk Agent. We have only a 10 Agent license and there is aprox 60 users. The point of Agent license i useless if we have to make all our JIRA users an Service Desk Agent.
The permission for Collaborator seems to be in the Service Desk Collaborators role. However I cannot find in JIRA where to change this role to allow for external comment to customers.