Omnioutliner application is good to use with various features.
in my personal view
1. good appearance
2. front-end application among the mark down applications on OSX
3. compatible with
Devonthink: this make quit easy to take notes.
1. too expensive
2. need independent applicable check-box on the specific mark down lists.
(currently on the menu, there is ‘show status checkbox’ on/off. but this turn on/off checkbox for hole mark down list)