Can I create a "structure" type of variable?

[ComplexPoint]

If you are happy to use Execute JavaScript actions, you can use Keyboard Maestro variables which are JSON strings.

You can then use JavaScript's built-in JSON.parse and JSON.stringify functions to decode and encode clusters of key-value pairs:

Passing complex data between KM actions using JSON

Using the JSON.stringify() function (in Javascript for Applications) lets us place complex data structures in single KM variables, and pass them from one action to another. (for example if we have a set of reader actions – reading perhaps OPML, MD, FTML and other outline formats, and a separate set of writer actions, writing out outlines in these formats, we can pass the parsed 'tree' from a Reader action to a Writer action as a JSON-encoded Javascript object). Encode a Javascript object as a …