Go to the Members tab on the left panel. From your Members Directory, check the check box of the name you will like to give User Permissions to.
1. Set-up User Permission for individual members. Click on Permissions to determine permissions.
2. The pop-up window will show you the list of modules similar to the order you see in the left panel. Check the check-box to determine which module you will like to give this member user permissions to and the degree of that permission.
3. See here for an Overview of User Permissions given to members.