Add custom_oid option for GROUP graphs

Hi 

I am with the latest version (commercial ) and trying to show for a group graphs of "custom_oid" I have created .

For example I added a custom OID for device-x that I have in 2 or 3 groups 

If I am lokking in the graphs shown directly on the custom_oid I am getting too much info for devices i don't need

So maby is there a way to add for a group the ability to show graphs by custom_oid