Large number of QoS Metrics are needed to be enabled on all the robots/servers in a bulk manner on UIM 20.3.
Release : UIM 20.3
Component : UIM - ROBOT
If you want to change/edit enable Metrics on all the Robots under a single Group, you can create a MCS group profile and enable all the necessary Metrics on that profile - that should be inherited by all the group member robots. You will have to create MCS Group profiles for all of your robots and enable Metrics on each profile.
If you are your UIM on 20.3, it will be recommended to be on the 20.3.3 version along with latest Patches/HotFixes available HERE.
Although, MCS Group Profile would be the preferred way - you can also use a superpackage (for detail, check the following Knowledge Articles).