Correct, when a port is placed in a port-channel the port will not follow any commands given to the individual interfaces, and will only follow the commands given to the port-channel.
Can I create a "trunk" between the PC3448P and PC3548P using their stacking ports, G3 & G4 in a LAG configuration?  I need to allow VLANs 110 and 162 over this trunk. Parsed config showing relative items only: interface port-channel 2 switchport mode trunk  interface range ethernet g(3-4) switchport mode trunk   interface port-channel 2 switchport trunk allowed vlan add 110 interface port-channel 2 switchport trunk allowed vlan add 162  interface range ethernet g(3-4) channel-group 2 mode on  
PC3448P and PC3548P