FMS disk does not let you mount and unmount, or use multiple floppies easily.
Try this one... this is what I used, but I had problems using dms with it... adf worked fine:
http://aminet.net/package/disk/misc/diskimageJust a note it mounts DI0-DI4, DI0:, and DI1: are DSHD not DSDD virtual floppies... use DI2: and DI3: (if I remember correctly).
