Yes, that's what it's for but I am expecting it only to act on the dialogs created by the script.
It was preventing the copy/move dialog showing from a normal copy operation in the lister.
I shall turn it off as it is not really neccessary for this script.
It wouldn't affect dialogs from other operations, but if there's a copy operation running without a dialog it might be possible for later operations to be queued to it.
copy/move dialog does not show.
If Navigator is closed during the operation the copy/move dialog appears.
If the copy operation is performed before opening Navigator then the copy/move dialog does not disappear.
Update:
It is not Navigator that is causing the problem, it seems to be happening with any script dialog.