Feature request - Virtual Domains

I have a suggestion:

There is an option in Fortinet's software to create Virtual Domains (VDOMs) which are used to divide a FortiGate into two or more virtual units that function independently.

Here is my use case for this feature:

I have static IP's from my ISP for separate networks with different purposes. Basically, one for the AirBnB guest, one for the kids, one for home and one for work.

Currently, I plug the modem into a small switch, then into independent firewalls for the separate networks. I'm sure there are several ways to complete the intended separation but I would like to avoid complex VLANs and access policies.

Ideally it would be cool to setup the Firewalla Gold into VDOMs where I can plug the modem into the WAN port, assign external IPs to the other ethernet ports and have the Firewalla act as the firewall for those independent networks.

Thanks