[hardcoreUFO]

I have a very simple OO script that does not seem to be working as advertised:

tell application "OmniOutliner Professional"
activate
tell front document
set note expanded of selected row to true
end tell
end tell

Instead of expanding the note of the selected row, I get an error saying:
"Cant set <<class OOne>> of <<class OOsr>> to true"

I thought thats what this command was *supposed* to do.