For manage Users please follow the next steps:

1. Login to System Admin Panel.
2. Select Manage User sub menu under Administrator menu from left side bar.
3. Then select User Type and filter specific user by click Find button.
5. By filter you will get a list of user
6. From the user list you can Activate, Inactivate, Edit & View a user. 
7. You are done with User Manage feature.