[curt.clifton]

There's another difference between my script and the new filter that I just discovered. The filter only shows stalled projects, whereas my script identifies action groups without next actions as well.

Perhaps I should be thinking about converting my larger projects to folders and making some of the action groups into proper projects. But I'm happy with the structure of my project "library" otherwise.

Looks like I'll still be using my script. I'll tweak the script to make the Missing NA be a suffix rather than a prefix. The items will still show up in a search, but it will be easier to clear the suffix (esc, opt-shift-left, opt-shift-left, delete).