I have created some simple AmigaDOS scripts for use with MO drives. They can also be used for e.g. CD-ROM drives. They have icons, and so can be run from Workbench; the default tool is IconX. The scripts make use of Gary Duncan's SCSIUtil program.

Since the scripts are simply single AmigaDOS commands, you can for example configure a program like ToolsDaemon with menu items to eject the disk, and allow/prevent medium removal.

You will need to edit the scripts to use the correct device name and unit number for your drive.

AllowMORemoval can be useful if you have been using a Mac emulator to access the MO drive as a SCSI device. If the emulated Mac crashes or hangs up, you will need to tell the drive to allow medium removal in order to eject the disk. Also HDToolBox has the habit of preventing ejection.

      EjectMO      
  AllowMORemoval   
 PreventMORemoval