Multiple KVM Whonix-Workstations

I've read about multiple Whonix-Workstations and would like to clarify.

Is it correct that:

1. If I want one Whonix-Gateway and multiple Whonix-Workstations in KVM I just need to edit Whonix-Workstation's /etc/network/interfaces.d/30_non-qubes-whonix file by changing the last octet of the IP address (e.g. 10.152.152.11 to 10.152.152.12 if it's the second Workstation or 10.152.152.11 to 10.152.152.13 if it's the third Workstation, etc.)?

2. If I want to add another Workstation and want to use separate Gateway for that Workstation in KVM I need to create new internal network by changing the name attribute in Whonix's network XML file (e.g. Whonix to Whonix2 if it's the second Gateway or Whonix to Whonix3 if it's the third Gateway, etc.) and accordingly change the line <source network='Whonix'/> in both Gateway's and Workstation's XML files? And if it's the first Workstation for that Gateway (but not the first Workstation on the host) there is no need to change the IP address as in the first paragraph because we created network (e.g. Whonix2, Whonix3, etc.) that's completely separate and independent from previously created networks? And generally IP addressess of different networks in KVM are completely independent (e.g. we can have one Gateway with Whonix network name and three Workstations using that Gateway with IP addresses 10.152.152.11, 10.152.152.12, 10.152.152.13 and at the same time another Gateway with Whonix2 network name and three Workstations using that Gateway with the same IP addresses (10.152.152.11, 10.152.152.12, 10.152.152.13)?