[rt-users] Group permission to comment but not reply

[Mike DeVries]

I'm installing RT 4 for a software company. Customer issues are handled 
by support staff and may need to go to the development team. I've set up 
the two groups and populated them but I'm having trouble understanding 
how I can allow the dev team to comment on tickets but not reply, while 
allowing the support team both permissions. The Group configuration page 
doesn't seem to include those permissions

Can someone help me with the correct procedure, or point me to the 
pertinent documentation?

Thanks,
Mike