Classical Metadata is (still) a big mess

Dear united Roon Users,

How do you force Roon to show all the albums of a CD box (e.g. an opera or the collected works of Szell …) separately instead of a list of CD 1, cd 2 cd 3 …etc with no art, and often even no mention of the work (all the works) on the CD.
It sometimes does do so (all albums separate entries) but often, it doesn’t.
How can you trigger this phenomenon?
Roon still has a lot of secrets which I don’t know yet. I hope to discover more and more in the future with your valued help.

Frans Gommers