Using cui with freeradius

[Arash Shams]

Hello 

I want to use cui in freeradius i searched wiki but there is no documentation about that ( or icant find it) in google i find some topics but they are all talk about eduroam .

Is cui available in core package or i need to install it manually ? 
how can i find a good toturial about that ? 

i tell about my problem before in mailing list but again : i have 4 device authenticate with 1 username to get daily 4G bandwidth but each device get 4G bandwidth means 16G daily i think cui maybe solve my problem