I don’t think anyone comes over here often, they stay in the main Cloverleaf forums. But the answer to your question is yes. Under administrator (or someone who has the rights), you can create a view that only has specific sites, and assign it to specific groups/persons. I would say do this under Administrator. You’ll also need to have at least basic security set up to do this. I don’t think it can be done if you don’t have basic security.
When you create the view and add which sites you want to include in the view, you have two options: 1) Select all processes and threads or 2) Select specific processes and threads. When you select this option, you’re presented with a drop down of the sites you’ve included and checkboxes for each process/thread you want to include in that view.