Hi,
In the enter event put:
app.execMenuItem("PropertyToolbar");
This will toggle between the Properties Bar being visible and hidden. So placing the same script in the exit event will hide the Properties Bar.
Hope that helps,
Niall
PS: This works in Acrobat v9. I don't know if it works in earlier version OR if it will work in future versions.
Message was edited by: Niall O'Donovan