filesysbox.library V54.4 is now out:
https://github.com/salass00/filesysbox/releases
Perfect now you can unmount the share on VMware, also found a way to remount "the same volume"
This feature discovered by accident, to unmount and mount, you need to use 2 commands, and only in that sequence, otherwise it will not work.
Basically you have to dismount SMB2 first with Assign dismount and then with UnMount, done that it is possinile to reassemble SMB2.
UnMount I had compiled it on AROS One x86 some time ago !
On AROS One it will create a script that will do automatic dismount but also automatic Dismount and Mount (useful after the 15 minute shutdown with shared Windows)