There's nothing better than for a user, especially one who relies on visuals, to visually see a "tree" of the possible actions they can do. And not tree in a li

There's nothing better than for a user, especially one who relies on visuals, to visually see a "tree" of the possible actions they can do. And not tree in a literal or CS sense, but rather, buckets of activities with sub activities, not in a hierarchy but in an intuitive and context-creating way.