Hi @Enricoflammini for what you’re describing, it sounds like setting up Workspaces makes the most sense. 

Workspaces are a way to divide up your inboxes into separate spaces with their own workflows, analytics and resources such as tags or message templates. For example, you could create separate workspaces for customer operations and for contract brokering.

Teammates can be given access to one or more workspaces, which, depending on their level of access, gives them permission to access its inboxes as well as create rules and resources inside the workspace. Company settings apply across workspaces, including billing, SSO and integrations.

We have an article here with more info.