Vidar,
Again, as far as I have been told this functionality is not available for the Removable Backup to Disk folders in the backup jobs. I had to double check this with some of my hardware guys, so there will be nothing I can do to help at this point.
Just as a side note, I was able to get a hold of an RD 1000 for testing and I wasn't able to get Backup Exec to eject the tapes at all. I had to use the software that comes with the device to eject the tapes or press the button on the front.