collection in Cross

i do really like the functionality of this Cross.
however I am not happy about how to arrange the music library.
Maybe I don't know how to do it yet but i tried to play with it and it seems not possible to reach my goal.
As a pro DJ the best to organize your music is to create a collection.
So for instance if I want to organize all my tracks of the 80s, i should just be able to create a collection, name it 80s music and import all songs that belong to that category. Once i want to play a certain 80s song i should just be able to click on collection and see all my 'under' collections.
Is this possible?
however I am not happy about how to arrange the music library.
Maybe I don't know how to do it yet but i tried to play with it and it seems not possible to reach my goal.
As a pro DJ the best to organize your music is to create a collection.
So for instance if I want to organize all my tracks of the 80s, i should just be able to create a collection, name it 80s music and import all songs that belong to that category. Once i want to play a certain 80s song i should just be able to click on collection and see all my 'under' collections.
Is this possible?