Server Rates

Hi Guys,

Please forgive me if this was discussed before I haven't found any similar topics. Is this possible to create separate server rates for group or / and raid dungeons?
Also currently we have only server rates for health / mana but not for damage or spell power. This doesn't give any flexibility, as I can increase my char's health but I can't increase the damage. I would really appreciate if you can advise. Thank you very much in advance.