Symantec MORE

OutLining package derived from Think Tank by Dave Winer. MORE is an outline processor application that was created for the Macintosh in 1986 by software developer Dave Winer[1] and that was not ported to any other platforms. An earlier outliner, ThinkTank, was developed by Winer,[1] his brother Peter, and Doug Baron[3] for Apple II, Apple III, PC[4] and then ported by Peter to the Macintosh.[5] MORE was the result of combining three planned products into one expanding around the outliner, and described by its author as an outline processor.[5] In MORE, the outlines could be formatted with different layouts, colors, and shapes. Outline "nodes" could include pictures and graphics. https://en.wikipedia.org/wiki/MORE_(application)

Dead for a long time. Here's a page for people trying to keep using it. http://faughnan.com/more/