🚀 go-pugleaf

I just tried this and it worked:

Tell application "Finder"
 set myFile to (choose file) as string
end tell

tell application "InDesign CS"
 open myFile without showing window
 open myFile with showing window
 activate
end

Without the activate, it was easy to conclude it wasn't working, but once I realized that it all might be happening in the OS background, that resolved the issue.

I'm not sure what you mean about "sending scripts to hidden windows." You can certainly operate on the document and its attributes, but because it doesn't have a window, you won't be able to do anything that depends on it having a window. For example, you can't have selections in a hidden window.

Dave