Hello
Is it possible get the details from the User Manager to the client hotspot Page or no ?
if it possible Please give me a simple example of how they work with hotspot page
thanks 
User Manager works with HotSpot database.
When User Manager is configured, and HotSpot user authenticates on login page, MikroTik RouterOS sends requests to User Manager with username/password. User Manager checks username/password and replies to HotSpot server with configured parameters, whether the particular user is allowed to login.
List of used RADIUS attributes are listed here (and list of options that you can configure for users),
http://wiki.mikrotik.com/wiki/Manual:RADIUS_Client