Hello All, I am fairly new to Oracle Enterprise Manager whether that is 10g/11g or 12c. We have recently deployed OEM 12c CC 12.1.0.3 on Linux and was wondering how other people manage their database estate using OEM. Due to the difficulty in identifying a long list targets within CloudControl with the host naming conventions in use, we need to split theenvironments into logical groups, DEV, QA1, QA2, PT, Prod Mirror, DBA etc. I know this is possible within OEM - but what is the difference between a 'Normal Group' and a 'Adminstration Group' . I guess what I am after is a general how do people manage hundreds possibly thousands of targets in OEM and to quickly identify to what a particular environment that target belongs to? TIA. Zabair