Userman v5rc11 Character Contstants

Hi guys a quick question about the new userman, love the extra features!!!

The character constants that i have been able to find dont seem to work/cant implement correctly…is there a list of what i can use somewhere?
http://wiki.mikrotik.com/wiki/User_Manager/Character_constants
is good but i cant get it to work with my v5rc11 %u_limit_uptime% and %u_timeLeft% that or most likely i havent set it up correctly in the profile section. Even if i could get it to display the “Actual Profile” name that would be awesome!

The original is below, standard format but the %u_timeLeft% wont display any writing! With any command i throw at it!

Prepaid time: %u_timeLeft%
Login: %u_username%
After attempting to open a web page, you should enter this login information
Login: %u_username% (login name that you enter at the HotSpot login page)
Password: %u_password% (password that you enter at the HotSpot login page)
If you want to extend time, please contact reception

Many thanks