Custom Metadata - duplication

I have numerous CMs for all of which I use Type “List”. I have different titles but each list contains the same words. Is there any way to duplicate a list? Currently, I’ve have 7 CMs and would like to add a few more but do not relish the thought of having to compile each list manually as I have done with the first 7.

For example:

CM title: Topic
Airbrush
Beetroot
Carrot
Demonstrate incompetence
Eventually
Fired
Gigantic
Hashtag
etc

CM title: Sub-topic(1)
Airbrush
Beetroot
Carrot
Demonstrate incompetence
Eventually
Fired
Gigantic
Hashtag
etc

CM title: Sub-topic(2)
Airbrush
Beetroot
Carrot
Demonstrate incompetence
Eventually
Fired
Gigantic
Hashtag
etc


My reason for using CM lists is to ensure search term consistency. I also use keywords but find that keywords only means I cannot see at a glance whether the result of a search is precisely what I am looking for. By using a combination of CM lists and keywords, I reserve use of keywords to specifics, with the CM lists generic.