Group Jobs (avoid default)

I was wondering if it is somehow possible to group jobs which would be especially usefull for monorepos as defining the “changes” for the specific package directory would have to be done for every stage.
Here is an example of how i would like to run it.

image: docker:19.03.8
services:
    - docker:19.03.8-dind

website:
  only:
    refs:
      - "pipeline-test"
    changes:
      - "packages/website/**/*"
      
  stage: build
   script:
    - ...
   
  stage: test
   script:
    - ...

  stage: deploy
   script:
    - ...

backend:
   only: ...