If you want more granularity than just `wishlist' what about the
`severities':
  todo-critical
  todo-minor
  todo-...
Then get a list of available severities with
  $ be list --help | grep -A1 '^severity'
  severity
    wishlist,minor,serious,critical,fatal,todo-critical,todo-minor
And show all the todos:
  $ be list --severity todo-critical,todo-minor

You can configure all the severities you'd like with
  $ be set severity wishlist,minor,...