[Greg Jones]

Curt is correct on the keystroke behaviors for dragging files, but I'm curious exactly what you are seeing when you drag a file into the note field? The default behavior in OmniFocus when dragging a file into the note field is to create a link to the file on disk. It's possible to also embed a file into the OF document, but linked files and embedded files look exactly the same in the note field of OmniFocus desktop. A double-click will open the document in its native application and a right-click or the space bar will give a Quick Look of the file. Can you describe, or attach a screen dump, of what you are seeing in the note field when a document is attached?