How do I add a Chat Room or Channel? (BlitzIn)

Command method: 
You now need to know the channel number you wish to add.  "help Channels" for a list of ICC channels.   To add the Experienced Help channel you would type '+channel 2' on the command bar under your Main Console. 
To remove the Experienced Help channel you would type '-channel 2' 
Type '=channels' for the list of channels you are currently in.  (Or type 'vars'.)
  

Some of these channels are restricted to Groups. You have to be a member of such a group to enter these channels.
For more info about groups read "help group-commands" 

More information in "help channels" and "help lists"