Welcome to the Community,
I'd really like to help, but I'm not exactly sure what you are asking for.
Is it about licensing, running multiple VMs on VMware Fusion, ...? Please clarify.
Moderator: Moved to Fusion
The answer is Yes and No.
Yes, you can run multiple versions of macOS via VMware Fusion, that's not a problem at all.
No, you cannot run your already installed versions of macOS within VMware Fusion. You have to create new copies of the version of macOS that you want to run in a virtual machine.
For a Windows bootcamp setup there's a special exception where you can run the virtual machine from a physical partition, this does not exist for macOS.
If you want to migrate apps and data from your physical macOS to the virtual one then that can be done.
Beware though that there are certain limitations to virtual versions of macOS, such as that there is no 3D hardware acceleration.
Hope this helps,