Hi @MariaD
You can add a section of IF condition (loops in bash scripting) to evaluate users based on groups and then pass the work parameter dynamically to allocate work directory as per the user group. This can be done in the workspace_usermods.sh file which is read during launch of workspace server.
USERMODS_OPTIONS="-work <full-path-to-work>"
Creating workspace server from SAS MC will only create logical instance of it in metadata referring to same physical location. if you wish to have separate work space servers, then you will have to install it using SAS deployment wizard launched from SAS software depot where in you can then set work directories for respective servers.
Thanks!