Since this is still relevant, I wanted to update the page number according to what the Scripting Guide has.
Pages 50,55, and 90
Each indicate using
//!
at the very beginning of the file will cause it to auto-run without opening the script editor or further mouse clicks.
As for the making it executable, I'm currently working on a solution to use a JMP script in a Windows' automatic task (reoccurs regularly or when triggered by some other event). I'll update with the details if it becomes necessary.