I guess you are talking about giving access to Report Suites; if understanding is correct then my answer is - when you will give access to any user, you will get an option - where you can define whether the user will have the admin access or user access (please see the attached image), you can define from there. After you give him/her the access, there is an option after that where you can select the areas where he/she can use.
If my understanding is wrong, then sorry for this post.
Regards
Utsav