[j-nsp] Junos Code and class of service handling

[Steve Leibrock]

I have an M20 running 6.0R2.4 and I am trying to enable class of service based QoS. 
 
When navigating the config menu I do not see a queue that will support DSCP codes of 40 or 24 and prioritize them into an assured forwarding queue. 
 
Does anyone know if I need to upgrade the code or am I just missing something in the setup configuration. 
 
Thanks in advance for any advice!! 
 
Steve