Some users are very opinionated about CLL, and if possible it could be a solution to be able to completly dismiss the solution altogether. If so I think it should be done on a session basis, as several people can use the same machine. Something like
Given I have a CLL-list I can't use
And I open the dialog
When I click "dismiss" (or whatever it should be called)
Then the dialog closes and the compact list feature terminates
Note that I have no opinion whether this additional feature should be made, it is only described as a possible solution to on-going discussions at nowiki.