Groups provide a direct way of determining what menus users in that group have access to. In the case of the Sales / Manager group, we have additional menu options listed, however members of the Sales / User: All Documents group would not see these menus unless they are also members of Sales / Manager, or if they are added specifically to the Sales / User: All Documents group:
If, for example, you wanted to allow users in the group Sales / User: All Documents to view the Activities report, you could remove the menu from the list in the Manager group and add the menu to the Sales / User: All Documents group. Because ...
