Once the user installs FortiClient VPN on the Mac, they can follow this guide to connect to the Network Drives.
In the server address, you can type in the address of the network drive you want to connect to, and click "Connect". For j: drive, it would be smb://smu-file-01.smunet.smu.ca/faculty_staff/s#. For department shares, it will be either smu-file-01 or 03 and leave out "/faculty_staff"
After finding the drive, the PC will ask you for your credentials
After you put in the right credentials, the network drive should be mounted to the Mac .S-number,and the password.